Combining herbal remedies can enhance healing—but only when done correctly. Two widely respected herbs, oil of oregano and mullein, are commonly used for respiratory health, infections, and immune support. But is it safe—and effective—to take them together?
This guide explores the science, benefits, risks, and best practices of combining oil of oregano and mullein. Whether you're addressing a cold, chronic lung issues, or just want to boost your immunity, here’s everything you need to know.
Panaprium is independent and reader supported. If you buy something through our link, we may earn a commission. If you can, please support us on a monthly basis. It takes less than a minute to set up, and you will be making a big impact every single month. Thank you!
What Is Oil of Oregano?
Oil of oregano is derived from the leaves of the Origanum vulgare plant. It has been used for centuries as a natural antibiotic and immune system enhancer. Its medicinal strength comes from compounds like:
-
Carvacrol – Potent antimicrobial, anti-inflammatory
-
Thymol – Antifungal, antiseptic
-
Rosmarinic acid – Antioxidant
Main uses:
-
Fights respiratory infections (cold, flu, bronchitis)
-
Kills harmful bacteria, viruses, and fungi
-
Supports gut and immune health
-
Acts as a natural decongestant
Forms: Drops, capsules, steam inhalation, or diluted topical oil.
What Is Mullein?
Mullein (Verbascum thapsus) is a flowering plant long used in herbal medicine, especially for the lungs and respiratory system.
Active compounds include:
-
Saponins – Help loosen and expel mucus
-
Mucilage – Soothes irritated tissues
-
Flavonoids – Reduce inflammation
Main uses:
-
Clears mucus and phlegm from lungs
-
Soothes sore throat and bronchial irritation
-
Eases dry or persistent cough
-
Supports recovery from respiratory illness
Forms: Tea, tincture, capsules, syrup, or herbal smoking blends.
Can You Take Oil of Oregano and Mullein Together?
Yes, oil of oregano and mullein can generally be taken together safely and may actually complement each other well, especially for respiratory issues and immune support.
However, like with all herbs, combining them should be done mindfully, considering dosage, duration, health status, and any medications you may be taking.
Let’s explore the key reasons they work well together—and the potential risks.
1. Complementary Benefits for Respiratory Health
| Oil of Oregano | Mullein |
|---|---|
| Antimicrobial – kills viruses, bacteria, fungi | Expectorant – loosens and removes mucus |
| Anti-inflammatory – reduces airway swelling | Soothes irritated lung tissue |
| Supports immune defense | Calms cough and supports lung repair |
Together, they can address both the cause and symptoms of respiratory issues like colds, flu, bronchitis, or even lingering congestion from COVID-19.
Example:
Someone fighting a sinus infection could use oregano oil to target the infection, while mullein helps open the airways, clear mucus, and soothe inflammation.
2. Synergistic Use in Cold, Flu, and Lung Conditions
When used together, oil of oregano and mullein can help:
-
Relieve upper and lower respiratory infections
-
Combat chest congestion
-
Soothe dry cough or sore throat
-
Shorten duration of colds and viral infections
-
Support lung detox and recovery
This pairing is especially useful during seasonal illness or for people with chronic lung conditions like asthma or COPD (with medical supervision).
3. How to Safely Take Oil of Oregano and Mullein Together
Here are safe and effective ways to use these herbs:
A. Dosage Guidelines
| Herb | Typical Dose | Notes |
|---|---|---|
| Oil of Oregano | 2–4 drops (diluted) or 150–200 mg capsule, 1–2x daily | Short-term use only (7–14 days) |
| Mullein | 1–2 tsp dried herb per cup (tea) 2–3x daily OR 30–60 drops tincture 1–3x daily | Can be used longer-term |
Tips:
-
Always dilute oregano oil in water, juice, or a carrier oil. Never take it undiluted.
-
Mullein tea is gentle and soothing—ideal for sipping throughout the day.
B. Timing and Duration
-
Oregano oil: Use for 7–14 days during active infection or illness.
-
Mullein: Can be taken continuously for lung support, especially in smokers or people recovering from respiratory infections.
Morning: Take oregano oil with food to avoid stomach upset.
Throughout the day: Sip mullein tea to keep the lungs clear and throat soothed.
Evening: Optional second dose of mullein or oregano oil if needed.
C. Best Methods of Use
-
Steam Inhalation: Add a few drops of oregano oil to hot water and inhale. Add mullein tea for enhanced lung-soothing vapor.
-
Tea Combo: Brew mullein as a base, and add a single drop of oregano oil (very diluted) for a potent tea (optional—taste is strong).
-
Tincture Combo: Mix both tinctures in water, following recommended dropper doses.
4. Potential Risks and Side Effects
Although both herbs are natural, they are powerful and can cause side effects if used improperly.
A. Oregano Oil Precautions
-
Can irritate the gut in high doses or when taken undiluted
-
May disrupt gut flora with long-term use (acts like a natural antibiotic)
-
Can thin the blood—avoid if on anticoagulants
-
Not recommended during pregnancy or for young children
Symptoms to watch for:
-
Nausea or burning in the stomach
-
Allergic reaction (rash, itching)
-
Headache or dizziness (from overuse)
B. Mullein Precautions
-
Generally safe, even in large doses
-
Rare risk of allergy to mullein fuzz – always strain tea well
-
May interact with diuretics or sedatives (mildly)
5. Who Should NOT Combine These Herbs
Avoid combining or using these herbs without supervision if you:
-
Are pregnant or breastfeeding
-
Have ulcers or gastrointestinal inflammation (oregano oil may worsen)
-
Take blood thinners, diabetes meds, or immune-suppressing drugs
-
Have a known allergy to plants in the mint or figwort family
6. Herbal Interactions with Medications
-
Oil of oregano can affect how the liver breaks down certain medications (via CYP450 enzymes)
-
Mullein may enhance sedative effects if combined with sleeping pills or alcohol
Always consult a healthcare provider if you're on prescription meds.
7. Scientific Evidence for Each Herb
Oil of Oregano
-
Antimicrobial action: Research shows carvacrol is effective against bacteria like Staphylococcus aureus and viruses like norovirus.
-
Respiratory support: Oregano oil reduces inflammation and viral load in respiratory infections.
-
Immune effects: Boosts white blood cell activity.
Source: [Burt S. 2004, International Journal of Food Microbiology]
Mullein
-
Expectorant and demulcent: Helps the body expel mucus while soothing tissues.
-
Anti-inflammatory: Reduces swelling in airways.
-
Antiviral and antibacterial: Contains compounds active against common cold and flu viruses.
Source: [Lans et al. 2007, Journal of Ethnobiology and Ethnomedicine]
8. Best Herbal Pairings
Oregano oil and mullein can also be combined with other herbs for enhanced results:
-
For immunity: Add elderberry or echinacea
-
For cough: Combine with marshmallow root or licorice
-
For sinus congestion: Pair with eucalyptus or peppermint steam
These blends create synergistic formulas often used in natural cold remedies.
Conclusion: A Powerful Duo for Natural Healing
So, can you take oil of oregano and mullein together?
Yes, for most healthy individuals, combining these herbs offers a powerful, natural approach to fighting respiratory infections, boosting immunity, and supporting lung health.
Their complementary effects—antimicrobial from oregano, and soothing and expectorant from mullein—make them an effective herbal pair for cold and flu season or any respiratory challenge.
Final Safety Tips:
-
Use oregano oil short-term only, and always dilute
-
Mullein can be taken daily as tea or tincture
-
Avoid long-term high doses of oregano oil without professional guidance
-
Consult your healthcare provider if you’re pregnant, nursing, or on medications
By respecting the potency of these herbs and using them wisely, you can unlock the full healing power of nature—safely and effectively.
References
-
Burt S. (2004). Essential oils: Their antibacterial properties and potential applications. International Journal of Food Microbiology.
-
Lans, C. et al. (2007). Medicinal plants used in traditional medicine for the treatment of respiratory tract infections. Journal of Ethnobiology and Ethnomedicine.
-
Force M. et al. (2000). Oregano: Overview of the literature on health benefits. Alternative Medicine Review.
-
Herbal Medicine: Biomolecular and Clinical Aspects. 2nd edition. CRC Press/Taylor & Francis; 2011.
Was this article helpful to you? Please tell us what you liked or didn't like in the comments below.
About the Author: Alex Assoune
Alex Assoune (MS) is a global health and environmental advocate. He founded Panaprium to inspire others with conscious living, ethical, and sustainable fashion. Alex has worked in many countries to address social and environmental issues. He speaks three languages and holds two Master of Science degrees in Engineering from SIGMA and IFPEN schools.
What We're Up Against
Multinational corporations overproducing cheap products in the poorest countries.
Huge factories with sweatshop-like conditions underpaying workers.
Media conglomerates promoting unethical, unsustainable products.
Bad actors encouraging overconsumption through oblivious behavior.
- - - -
Thankfully, we've got our supporters, including you.
Panaprium is funded by readers like you who want to join us in our mission to make the world entirely sustainable.
If you can, please support us on a monthly basis. It takes less than a minute to set up, and you will be making a big impact every single month. Thank you.
RELATED ARTICLES
Tags
Can You Take Oil of Oregano and Mullein Together? Complete Guide
Combining herbal remedies can enhance healing—but only when done correctly. Two widely respected herbs, oil of oregano and mullein, are commonly used for respiratory health, infections, and immune support. But is... Read More
Can I Take Ashwagandha and Oregano Oil Together? Complete Guide
Ashwagandha and oregano oil are two popular natural remedies, each praised for their distinct health benefits. Ashwagandha is best known for its adaptogenic and stress-reducing properties, while oregano oil is... Read More
What Herbs Should Not Be Mixed Together in Tea: Complete Guide
Herbal teas have long been praised for their natural healing properties, offering support for everything from digestion to relaxation. However, while herbal teas are generally safe, mixing certain herbs together can... Read More
When to Start Seeds Indoors in Zone 6: The Ultimate Guide
Living in USDA Hardiness Zone 6, which spans much of the central and eastern U.S., gives gardeners a moderately long growing season—typically from mid-April to mid-October. Most areas have an average... Read More
When to Start Seeds Indoors in Zone 4: Complete Guide
Zone 4 encompasses some of the coldest parts of the contiguous United States, with average minimum winter temperatures plunging to −30 °F and last spring frosts often hanging around June 1, according to Urban... Read More
When to Start Tomato Seeds Indoors in Zone 5b: Complete Guide
Tomatoes are among the most popular home garden crops—and for good reason. Their rich flavor, versatility in cooking, and rewarding yield make them a must-have for many gardeners. However, if... Read More
When to Start Pepper Seeds Indoors in Zone 5: Complete Guide
Growing your own peppers from seed is one of the most rewarding gardening experiences—especially in USDA Hardiness Zone 5, where the growing season is short and warm-weather crops need a head... Read More
When to Start Flower Seeds Indoors in Zone 5: Complete Guide
Starting flower seeds indoors is a smart way to get a head start on the growing season—especially in USDA Hardiness Zone 5, where winters are long and the growing window is... Read More
When to Start Herb Seeds Indoors in Zone 5: Complete Guide
Growing herbs from seed is an affordable and rewarding way to start your own herb garden. But in USDA hardiness zone 5, where winters are long and frosts linger into spring,... Read More
Is It Better to Grow Herbs from Seeds or Plants? Pros & Cons
Herbs are among the easiest and most rewarding plants to grow. Whether you're dreaming of fresh basil for homemade pesto or fragrant lavender for teas and crafts, the first big... Read More
When Can I Plant Herbs Outside in Pots? Complete Seasonal Guide
Planting herbs outside in pots is one of the most rewarding ways to start a garden. Whether you're growing basil for your pasta, mint for iced tea, or lavender for... Read More
Will Herbs Survive Winter in Pots? Complete Guide to Growing Herbs
Growing herbs in pots is a practical way to enjoy fresh, fragrant plants year-round—whether you're cooking in the kitchen or decorating your balcony. But when winter rolls around, many gardeners... Read More
Growing Herbs Indoors with Artificial Light: Complete Guide
Growing herbs indoors allows for fresh flavor and natural healing right at your fingertips, even when outdoor conditions are harsh or inconsistent. But one major challenge indoor gardeners face is... Read More
Herbs That Grow All Year Round Outside: Complete Perennial Guide
Fresh herbs are one of the easiest ways to add vibrant flavor and nutrition to meals, but many people assume herb gardening is limited to the warm growing season. The... Read More
Herbs That Grow in Winter Outside: Guide to Cold-Weather Gardening
When temperatures drop and gardens go dormant, many gardeners assume their herb-growing days are over until spring. But in reality, several hardy herbs can survive—and even thrive—outdoors during the winter... Read More
Growing Herbs from Seed Indoors in Winter: Complete Beginner’s Guide
Growing herbs from seed indoors during winter is a rewarding way to bring fresh greenery, flavor, and life into your home when the outdoor world is dormant. With the right... Read More
How to Grow Herbs Indoors: A Complete Guide for Year-Round Flavor
Growing herbs indoors is a simple and rewarding way to bring fresh flavor, fragrance, and greenery into your home. Whether you have a sunny windowsill or a tiny apartment kitchen,... Read More
How Close Can You Plant Herbs Together? Complete Guide
Herbs are some of the easiest and most rewarding plants to grow, whether in containers on a windowsill or a garden bed in your backyard. But one of the most... Read More
Flowers to Plant with Herbs in Pots: Complete Guide for Beginners
Growing herbs in pots is a rewarding and practical way to bring fresh flavors to your kitchen and fragrance to your garden. But what if you could boost the health... Read More
Which Herbs Should Not Be Planted Together? Complete Guide
Growing herbs is one of the most rewarding aspects of gardening. They’re compact, flavorful, and full of health benefits. But not all herbs make good neighbors. Just like people, some... Read More
What Herbs Grow Well Together in the Same Container? Complete Guide
Growing herbs in containers is a convenient and rewarding way to keep fresh flavors right at your fingertips. But when space is limited, many gardeners wonder: Can I grow different... Read More
Best Soil for Herbs in Pots: Complete Guide for a Thriving Herb Garden
Growing herbs in pots is a practical and rewarding way to cultivate fresh flavor at home. Whether you’re working with a sunny windowsill, a balcony, or a full patio, container... Read More
Ethical Harvesting: Foraging Examples That Respect Nature
In an era where sustainable living is more important than ever, foraging—gathering wild food and medicine from natural landscapes—offers a way to connect with the earth while reducing our ecological... Read More
REAL Wildcrafting Examples: Traditional and Modern Practices
Wildcrafting is the ancient art of harvesting wild plants from their natural habitats for food, medicine, and spiritual use. Long before the invention of agriculture or synthetic pharmaceuticals, people around... Read More
Wildcrafted vs Organic: What’s the Difference and Why It Matters
In an age of wellness trends and eco-conscious living, words like “wildcrafted” and “organic” are appearing on everything from herbal teas to skincare and supplements. But what do these labels... Read More
20 Best Wild Herbs for Cooking: Flavor from the Forest to Your Fork
Wild herbs aren’t just for medicine—they’re also a rich source of culinary flavor, often fresher and more potent than what you find in the grocery store. Foraging for wild herbs... Read More
Wildcrafting Herbs List: 20 Powerful Plants to Harvest Responsibly
Wildcrafting is the ancient practice of gathering herbs and plants from their natural environments for healing, spiritual, or culinary purposes. Unlike farming or commercial harvesting, wildcrafting emphasizes respect, sustainability, and... Read More
0 comments