Top 5 Best Essential Oils for Congestion Relief in 2025

Congestion is one of the most common and uncomfortable symptoms associated with colds, seasonal allergies, and sinus issues. Whether it feels like a blocked nose, sinus pressure, or chest tightness, congestion can disrupt sleep, breathing, and daily comfort. For many Americans looking for natural relief, essential oils have become a popular complementary option to support clearer airways and easier breathing.

This guide explains how essential oils may help relieve congestion, which oils are commonly used, how to use them safely, and what to consider before choosing the best essential oil for congestion relief.

Our Top Picks for Essential Oil for Congestion

1. Best Overall Essential Oil for Congestion: Cliganic Organic Tea Tree Essential Oil (100% Pure, Non-GMO)

• Why? Cliganic stands out for its organic sourcing, high purity, and consistent quality. Tea tree essential oil is commonly used in aromatherapy to help create a cleaner-feeling breathing environment, especially when congestion or stuffy air is present.
• Key Benefits: Supports a clearer, fresher breathing experience and helps purify indoor air when diffused.
• Best for: Users looking for a single-ingredient, organic essential oil to support congestion relief through aromatherapy.

2. Best Essential Oil Blend for Diffusers & Showers: Maple Holistics Breathe Essential Oil Blend (1 fl oz)

• Why? This pre-blended formula combines eucalyptus, peppermint, tea tree, and mint, making it convenient for quick use without DIY mixing. The scent is refreshing and cooling, ideal for diffuser and shower aromatherapy.
• Key Benefits: Promotes easier breathing, refreshing airflow, and a cooling sensation during congested days.
• Best for: Those who prefer a ready-made “breathe” blend for diffusers and shower use.

3. Best Single Eucalyptus Oil for Strong Congestion Support: Majestic Pure Eucalyptus Essential Oil (4 fl oz)

• Why? Majestic Pure offers excellent value with a large 4 fl oz bottle, making it suitable for frequent use. Eucalyptus oil is well known for creating a clear, invigorating breathing sensation when diffused.
• Key Benefits: Supports open-feeling airways, refreshes indoor air, and helps reduce the sensation of nasal congestion.
• Best for: Heavy diffuser users who want a cost-effective, single-ingredient eucalyptus oil.

4. Best Calming Breathe Blend for Nighttime Use: Gya Labs Breathe Essential Oil Blend (0.34 fl oz)

• Why? This blend combines eucalyptus, peppermint, tea tree, lemon, and bay laurel leaf to support breathing while maintaining a smoother, more calming aroma. Many users find it less harsh than straight peppermint or eucalyptus oils.
• Key Benefits: Supports relaxed breathing, helps reduce sinus pressure sensations, and promotes a calming atmosphere.
• Best for: Those who want congestion support with a gentler, more relaxing scent for nighttime diffusion.

5. Best Premium Peppermint Essential Oil for Congestion: doTERRA Peppermint Essential Oil (15 ml)

• Why? doTERRA Peppermint is known for its strong, crisp aroma and high perceived potency. It delivers an immediate cooling sensation when diffused and is often chosen by users who value brand reputation and intensity.
• Key Benefits: Provides a powerful minty aroma, supports a clear breathing sensation, and delivers a strong refreshing effect.
• Best for: Users seeking a premium peppermint essential oil with a bold scent for congestion-related aromatherapy.

Rank	Product	Form	Price per Count	Highlight	Key Benefits	Best For
1️⃣	Cliganic Organic Tea Tree Essential Oil (1 fl oz)	Essential Oil (Single)	$9.99 / fl oz	Best Overall Essential Oil for Congestion	Supports clearer breathing, helps purify air, organic & non-GMO	Users seeking a clean, organic, single-ingredient oil for congestion support
2️⃣	Maple Holistics Breathe Essential Oil Blend (1 fl oz)	Essential Oil Blend	$11.49 / fl oz	Best Essential Oil Blend for Diffusers & Showers	Easier breathing, refreshing airflow, cooling minty aroma	Those preferring a ready-made blend for diffuser and shower aromatherapy
3️⃣	Majestic Pure Eucalyptus Essential Oil (4 fl oz)	Essential Oil (Single)	$2.50 / fl oz	Best Value for Money Eucalyptus Oil	Supports chest & sinus congestion, strong eucalyptus aroma	Heavy diffuser users wanting strong congestion support at a low cost
4️⃣	Gya Labs Breathe Essential Oil Blend (0.34 fl oz)	Essential Oil Blend	$29.38 / fl oz	Best Calming Breathe Blend	Breathing comfort, sinus relief, calming aromatherapy	Nighttime use and users wanting congestion relief with relaxation
5️⃣	doTERRA Peppermint Essential Oil (15 ml)	Essential Oil (Single)	$212.19 / fl oz	Best Premium Peppermint Essential Oil	Powerful cooling sensation, clear breathing support	Users seeking a premium, highly concentrated peppermint oil

1. Best Overall Essential Oil for Congestion: Cliganic Organic Tea Tree Essential Oil (100% Pure, Non-GMO)

Price: $9.99

Cliganic Organic Tea Tree Essential Oil is a USDA-certified organic, single-ingredient essential oil designed for aromatherapy and multipurpose use. It is steam-distilled, undiluted, and third-party tested for purity, making it a popular choice among users looking for a clean, reliable essential oil to support sinus and nasal comfort. This product is available in multiple sizes and is widely used in diffusers, steam inhalation, and diluted topical applications.

Key Benefits

• Helps support clearer breathing during nasal and sinus congestion
• Strong, earthy aroma that many users find effective for diffuser use
• USDA organic, non-GMO, vegan, and cruelty-free formulation
• Versatile oil suitable for aromatherapy, steam inhalation, and topical dilution
• Third-party tested for purity and quality assurance

Key Ingredients

• Tea Tree Essential Oil (Melaleuca alternifolia) – 100% pure, single-ingredient oil
  Form: Essential oil (liquid)
  Standard use: Aromatherapy diffusion or diluted topical application

Pros

• Certified USDA organic with non-GMO verification
• Undiluted, single-ingredient formulation
• Strong aroma that performs well in diffusers
• Third-party lab tested for purity
• Good value for money compared to many organic competitors

Cons

• Scent can be too strong for users sensitive to tea tree oil
• Longevity of aroma may vary depending on diffuser and environment
• Requires proper dilution for topical use

Customer Feedback (from Amazon)

Scent
Customers frequently describe the aroma as strong, earthy, and very fragrant. Many appreciate the natural, fresh scent, while a smaller portion note that it can feel overpowering if too many drops are used.

Quality
The majority of users praise the oil’s quality, highlighting its purity and potency. Many compare it favorably to more expensive essential oil brands and feel confident using it regularly.

Effectiveness / Works Well
Users report that the oil works well in diffusers and steam inhalation, particularly for opening sinuses and supporting breathing comfort during allergy or congestion episodes.

Pain Relief & Relaxation
Some customers also mention secondary benefits such as easing headaches, muscle tension, and promoting relaxation, especially when used in aromatherapy routines.

Organic Content & Trust
Buyers appreciate that the oil is genuinely certified organic rather than just labeled as “natural,” reinforcing trust in the brand’s transparency and sourcing.

Longevity
Feedback is mixed regarding scent longevity. While many find it long-lasting in diffusers, others feel the aroma fades faster than expected, depending on usage and room size.

Best Suited For

• Individuals looking for an organic essential oil to support sinus or nasal congestion
• Users who prefer strong, natural aromas in diffusers
• Those seeking a versatile essential oil for aromatherapy and home use
• Buyers prioritizing organic certification and clean-label products

Usage Recommendations

• Add 2–4 drops to a diffuser for congestion support
• Use 1–2 drops in steam inhalation with hot water, inhaling carefully
• Dilute with a carrier oil before topical application to the chest or neck
• Start with a small amount to assess scent strength and tolerance

Summary:
Cliganic Organic Tea Tree Essential Oil stands out as a high-quality, USDA-certified organic option for congestion support. Its strong aroma, verified purity, and excellent value make it a reliable choice for aromatherapy users seeking natural breathing comfort.

2. Best Essential Oil Blend for Diffusers & Showers: Maple Holistics Breathe Essential Oil Blend (1 fl oz)

Price: $11.49

Maple Holistics Breathe Essential Oil is a refreshing aromatherapy blend designed specifically to support clearer breathing and overall respiratory comfort. Formulated with eucalyptus, peppermint, spearmint, and tea tree oils, this blend is widely used in diffusers, humidifiers, and showers. It is especially popular during cold seasons and allergy periods when congestion and stuffiness are more noticeable.

Key Benefits

• Helps promote easier breathing during nasal and sinus congestion
• Cooling, minty aroma that feels refreshing and invigorating
• Works well in diffusers, humidifiers, and shower aromatherapy
• Pre-blended formula removes the need for DIY mixing
• Suitable for daily aromatherapy use at home

Key Ingredients

• Eucalyptus globulus (Eucalyptus) leaf/twig oil
• Mentha arvensis (Peppermint) leaf oil
• Mentha viridis (Spearmint) leaf oil
• Melaleuca alternifolia (Tea Tree) leaf oil

Form: Essential oil blend (liquid)
Suggested diffuser use: 3–4 drops per 100 mL of water

Pros

• Well-balanced blend specifically formulated for breathing support
• Pleasant minty scent that is not overly harsh
• Strong diffuser performance with long-lasting aroma
• Good value compared to single-oil purchases
• Convenient option for users who prefer ready-made blends

Cons

• Not a single-ingredient oil for those seeking pure essential oils only
• Scent profile may feel too mint-forward for some users
• Bottle size options are limited

Customer Feedback (from Amazon)

Scent
Most customers enjoy the fresh, minty aroma, describing it as clean, calming, and spa-like. Many note that the scent is strong enough to be effective without being overwhelming.

Quality
Users consistently praise the quality of the blend, often comparing it favorably to more expensive essential oil brands. Many report confidence in using it daily due to its consistent performance.

Relaxation & Sleep Support
Beyond congestion relief, many users find the blend relaxing. Customers often diffuse it in the evening and report feeling calmer, with improved ability to unwind and fall asleep.

Effectiveness
Customers frequently mention that the blend works well in diffusers, particularly for opening sinuses and refreshing indoor air. Several users note noticeable relief during allergy or cold seasons.

Longevity & Value for Money
The oil is commonly described as long-lasting, with only a few drops needed per session. Many reviewers highlight that it offers strong value for money given its potency and versatility.

Blend Satisfaction
The combination of eucalyptus, peppermint, spearmint, and tea tree is widely appreciated. Users like that it provides a balanced aroma without requiring custom mixing.

Best Suited For

• Individuals seeking a ready-made essential oil blend for congestion
• Users who prefer diffuser or shower aromatherapy
• Homes needing a refreshing, clean-smelling atmosphere
• Those looking for a multitasking blend that supports breathing and relaxation

Usage Recommendations

• Add 3–4 drops per 100 mL of water in a diffuser or humidifier
• Use in the shower for steam-based inhalation
• Avoid direct topical application unless properly diluted
• Start with fewer drops to adjust scent strength

Summary:
Maple Holistics Breathe Essential Oil Blend is a well-formulated, user-friendly option for congestion support. With its refreshing minty aroma, strong diffuser performance, and excellent customer satisfaction, it stands out as a convenient and effective essential oil blend for everyday breathing comfort.

3. Best Single Eucalyptus Oil for Strong Congestion Support: Majestic Pure Eucalyptus Essential Oil (4 fl oz)

Price: $9.99

Majestic Pure Eucalyptus Essential Oil from Majestic Pure is a 100% pure, single-ingredient oil formulated for aromatherapy, diffusion, steam inhalation, and DIY applications. Made from Eucalyptus globulus, this oil is independently tested for purity and comes in a large 4 fl oz amber glass bottle with a built-in dropper. Its strong, sharp aroma makes it a popular choice for users seeking direct and powerful congestion support.

Key Benefits

• Helps promote clearer breathing during sinus and chest congestion
• Strong, penetrating eucalyptus aroma ideal for steam inhalation
• Works well in diffusers and humidifiers for respiratory comfort
• Large bottle size offers excellent long-term value
• Suitable for aromatherapy, baths, and DIY blends

Key Ingredients

• Eucalyptus globulus (Eucalyptus) essential oil – 100% pure

Form: Single essential oil (liquid)
Bottle size: 4 fl oz (118 mL) with glass dropper

Pros

• Single-ingredient, undiluted eucalyptus oil
• Independent lab testing with quality guarantee
• Large bottle size at a very competitive price per ounce
• Strong scent that performs well for congestion-focused use
• Amber glass bottle protects oil from light degradation

Cons

• Scent strength may be overwhelming for sensitive users
• Mixed feedback regarding perceived purity compared to premium boutique brands
• Not pre-blended, so users must mix with other oils if desired

Customer Feedback (from Amazon)

Quality
A large number of customers describe the oil as good quality, noting that it performs well for aromatherapy, diffusers, and humidifiers. Many users feel it compares favorably to more expensive eucalyptus oils.

Effectiveness / Works Well
Customers frequently report that the oil works well in diffusers and steam inhalation, particularly for clearing airways and refreshing indoor air. Several users mention that only a small amount is needed per use.

Bottle Size & Value for Money
The 4-ounce bottle is one of the most praised aspects. Many buyers appreciate the generous size and low cost per ounce, making it ideal for frequent or long-term use.

Smell & Strength
Feedback on scent strength is mixed. Some users love the strong, authentic eucalyptus aroma, while others find it too intense or sharper than expected.

Oil Purity
Opinions on purity vary. While many customers confirm it feels pure and potent, a portion of users question whether it matches the purity of higher-end essential oil brands.

Best Suited For

• Users looking for a pure eucalyptus oil for congestion relief
• Steam inhalation and diffuser-based respiratory support
• Those who want a strong aroma rather than a mild blend
• Buyers seeking maximum volume and value for money

Usage Recommendations

• Add 2–3 drops to a diffuser or humidifier for congestion support
• Use 1–2 drops in hot water for steam inhalation
• Dilute properly before any topical application
• Start with a small amount due to its strong scent

Summary:
Majestic Pure Eucalyptus Essential Oil is a powerful, budget-friendly option for congestion relief. Its strong aroma, large bottle size, and solid performance in diffusers and steam inhalation make it an excellent choice for users who want a pure, no-frills eucalyptus oil at a great value.

4. Best Calming Breathe Blend for Nighttime Use: Gya Labs Breathe Essential Oil Blend (0.34 fl oz)

Price: $9.99

Gya Labs Breathe Essential Oil Blend from Gya Labs is a thoughtfully formulated aromatherapy blend designed to support easier breathing while also promoting relaxation. This blend combines eucalyptus, peppermint, lemon, tea tree, and bay laurel leaf oils, making it suitable for congestion-prone days, seasonal discomfort, and nighttime wind-down routines. It is commonly used in diffusers, humidifiers, DIY inhalers, and aromatherapy applications.

The oil is GC/MS tested, comes with safety documentation (COA, SDS), and sources ingredients from multiple regions including the USA, Australia, Italy, and Hungary.

Key Benefits

• Supports clearer breathing during nasal and sinus congestion
• Combines respiratory support with a calming, relaxing effect
• Fresh, herbaceous aroma suitable for both day and night use
• Works well in diffusers, humidifiers, and DIY inhalers
• Tested for purity, potency, and safety

Key Ingredients

• Eucalyptus essential oil (Australia)
• Peppermint essential oil (USA-grown leaves)
• Lemon essential oil (Italian lemon rinds)
• Tea tree essential oil (Australian leaves)
• Bay laurel leaf essential oil (Hungary)

Form: Essential oil blend (liquid)
Bottle size: 10 mL (0.34 fl oz)

Pros

• Well-balanced blend that supports breathing without being overly harsh
• GC/MS tested with certificate of analysis available
• Pleasant scent that many users find both refreshing and soothing
• Suitable for diffuser, humidifier, and aromatherapy use
• Strong customer satisfaction for breathing comfort and relaxation

Cons

• Small bottle size compared to some competing blends
• Some users report bottle leakage during shipping
• Effects may vary depending on congestion severity and sensitivity
• Not recommended for pets or during pregnancy

Customer Feedback (from Amazon)

Effectiveness
Many customers report that the blend is effective for congestion support, with users mentioning sinus relief, reduced pressure, and improved breathing when used in diffusers or humidifiers. A small number of users report limited benefits or increased post-nasal drip.

Quality
Feedback on quality is consistently positive. Customers describe the oil as well-made, reliable, and suitable for daily diffuser use. Several reviewers note that while the scent strength is moderate, the overall quality is good for the price.

Breathing Comfort
Users frequently mention improved breathing comfort, especially during colds or allergy seasons. Several reviews highlight that the peppermint and eucalyptus combination helps open airways quickly.

Calming Effect
Beyond congestion support, many users appreciate the calming and relaxing effects. Some customers report improved sleep quality and reduced nighttime discomfort, with a few mentioning successful use alongside CPAP routines.

Scent & Blend Satisfaction
The scent is often described as fresh, clean, and well-balanced. Customers like that the blend is not overly minty and feels smoother than single-oil eucalyptus or peppermint.

Packaging Issues
A recurring negative theme involves occasional bottle leakage during shipping, which some users cite as a downside.

Best Suited For

• Individuals seeking both breathing support and relaxation
• Nighttime diffuser use during colds or seasonal congestion
• Users who prefer a smoother blend over single strong oils
• Those interested in GC/MS-tested, safety-documented essential oils

Usage Recommendations

• Add 1–2 drops to a diffuser or humidifier for breathing support
• Use in steam-based aromatherapy or DIY inhalers
• Suitable for candle making, soap making, and aromatherapy blends
• Start with a small amount to assess scent strength and response

Summary:
Gya Labs Breathe Essential Oil Blend offers a balanced approach to congestion support by combining breathing comfort with a calming, relaxing aroma. With quality testing, well-sourced ingredients, and strong customer feedback for breathing and sleep support, it stands out as a versatile essential oil blend for everyday congestion relief.

5. Best Premium Peppermint Essential Oil for Congestion: doTERRA Peppermint Essential Oil (15 ml)

Price: $33.95

doTERRA Peppermint Essential Oil from doTERRA is a premium, single-ingredient essential oil made from Mentha piperita. It is widely recognized for its intense, cooling aroma and is commonly used to support clear breathing, sinus comfort, and respiratory function. This oil is CPTG (Certified Pure Tested Grade), meaning it undergoes extensive testing for purity, potency, and consistency.

With its strong menthol profile, doTERRA Peppermint is frequently used in diffusers, steam inhalation, topical blends (when diluted), and wellness routines focused on congestion relief.

Key Benefits

• Promotes clearer breathing and respiratory comfort
• Strong cooling sensation that helps open nasal passages
• Highly concentrated, long-lasting aroma
• Versatile use for diffusion, inhalation, and topical dilution
• Trusted CPTG-certified quality standard

Key Ingredients

• Peppermint (Mentha piperita) essential oil – 100% pure

Form: Single essential oil (liquid)
Bottle size: 15 mL (0.5 fl oz)

Pros

• Very strong, effective peppermint aroma for congestion support
• CPTG-certified with rigorous purity testing
• Highly concentrated, so only small amounts are needed
• Widely trusted brand with consistent quality
• Multi-purpose oil beyond congestion use

Cons

• Significantly more expensive than most peppermint oils
• Mixed feedback regarding scent consistency when purchased through third-party sellers
• Strong aroma may be overwhelming for sensitive users
• Occasional complaints about packaging or leakage during shipping

Customer Feedback (from Amazon)

Quality
A large majority of customers praise the quality, describing it as one of the best peppermint oils available. Many reviewers highlight its concentration, freshness, and professional-grade feel.

Breathing Comfort
Users frequently mention improved breathing, particularly at night. Customers report that diffusing the oil or inhaling it helps them breathe easier when sinuses are congested or clogged.

Effectiveness
Customers often describe fast-acting effects, noting that the oil works quickly for congestion, headaches, and sinus discomfort. Many users say they noticed results within minutes of inhalation.

Pain Relief & Headaches
Beyond congestion, many customers report relief from headaches, muscle tension, motion sickness, and nausea, making it a highly versatile essential oil.

Smell
Opinions on scent are mixed. While many love the strong, fresh peppermint aroma, some reviewers feel it smells different from previous bottles or does not match their expectations of doTERRA’s original scent.

Oil Purity Concerns
A smaller group of users express concerns about purity when buying from Amazon, questioning authenticity compared to oils purchased directly from doTERRA. This feedback appears related to seller variability rather than the formulation itself.

Best Suited For

• Users seeking a powerful peppermint oil for congestion relief
• Nighttime diffuser use to support breathing
• Individuals who prefer single-ingredient essential oils
• Those willing to pay a premium for tested, concentrated quality

Usage Recommendations

• Add 1–2 drops to a diffuser for breathing support
• Inhale directly from the bottle or via steam inhalation (with caution)
• Dilute with a carrier oil before topical application
• Use sparingly due to high concentration

Summary:
doTERRA Peppermint Essential Oil stands out as a premium option for congestion relief thanks to its potency, strong cooling aroma, and rigorous purity standards. While the price is high, many users feel the quality, effectiveness, and versatility justify the investment, especially for those who rely on peppermint oil regularly to support clear breathing.

What Is Congestion and Why Does It Happen?

Congestion occurs when tissues lining the nasal passages, sinuses, or chest airways become inflamed and swollen, often accompanied by excess mucus production.

Common types of congestion include:

• Nasal congestion: A blocked or stuffy nose caused by inflamed nasal tissues
• Sinus congestion: Pressure and fullness around the eyes, forehead, and cheeks
• Chest congestion: Mucus buildup in the lungs that may cause coughing or tightness

Typical causes of congestion:

• Common colds and flu
• Seasonal or environmental allergies
• Sinus infections
• Dry air or airborne irritants

While over-the-counter medications can be effective, many people prefer natural approaches to help manage mild congestion symptoms.

How Essential Oils May Help Relieve Congestion

Essential oils contain aromatic compounds extracted from plants that may support respiratory comfort when inhaled or used correctly.

Potential ways essential oils help with congestion:

• Aromatic inhalation: Strong, penetrating scents may help open nasal passages
• Cooling or warming sensations: Certain compounds can create a sensation of easier airflow
• Soothing effects: Some oils are traditionally used to support sinus comfort and relaxation

Essential oils do not cure infections, but they may help provide temporary symptomatic relief when used as part of a broader wellness routine.

Best Essential Oils Commonly Used for Congestion

Several essential oils are widely used for respiratory and sinus support. Each oil offers slightly different properties and aroma profiles.

Peppermint oil
Known for its strong, cooling aroma that many people associate with clearer breathing.

Eucalyptus oil
Often used in steam inhalation and chest rubs for respiratory comfort.

Tea tree oil
Valued for its cleansing aroma and versatility in diffusers and blends.

Rosemary oil
Traditionally used to support circulation and respiratory clarity.

Lavender oil
While milder, it may help promote relaxation and easier breathing, especially at night.

Frankincense oil
Commonly used for deep, steady breathing and overall respiratory support.

Ways to Use Essential Oils for Congestion

There are several effective methods for using essential oils, depending on personal preference and the type of congestion.

Diffuser use
Add a few drops to a diffuser filled with water. This method is ideal for ongoing support throughout the day or night.

Steam inhalation
Add 1–2 drops to a bowl of hot water and inhale steam carefully for short periods.

Topical application
Always dilute with a carrier oil before applying to the chest or neck. Avoid direct contact with eyes and sensitive areas.

Shower use
Add drops to shower steam or a damp washcloth for aromatic inhalation.

Essential Oil Safety Considerations

While essential oils are natural, they are highly concentrated and should be used responsibly.

Important safety tips:

• Always dilute essential oils before topical use
• Avoid internal use unless directed by a qualified professional
• Use caution if pregnant, nursing, or managing medical conditions
• Keep essential oils away from children and pets
• Perform a patch test before first-time topical application

If congestion is severe, persistent, or accompanied by fever or chest pain, medical evaluation is recommended.

Essential Oils vs Over-the-Counter Decongestants

Many people compare essential oils with conventional decongestant medications.

Essential oils
Provide natural, aromatic support and are commonly used for mild congestion and daily comfort.

OTC decongestants
Offer faster symptom suppression but may cause side effects such as drowsiness or rebound congestion. These are often best for short-term or more severe symptoms.

Some individuals choose to use essential oils alongside other supportive measures such as hydration and humidifiers.

How to Choose the Best Essential Oil for Congestion

Selecting the right essential oil depends on individual needs and preferences.

Key factors to consider:

• Type of congestion (nasal, sinus, or chest)
• Single oil versus blended formulas
• Intended use method (diffuser, topical, steam)
• Sensitivity to strong scents
• Product purity and third-party testing

Clear labeling and responsible sourcing are essential when choosing high-quality essential oils.

FAQ – Best Essential Oil for Congestion

Final Verdict

Essential oils can be a supportive natural option for managing mild congestion and promoting breathing comfort. When used safely and appropriately, they may complement other lifestyle measures such as rest, hydration, and humidified air.

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