Mullein: The Lung Herb
Soft as a rabbit's ear, sharp as a scalpel on stuck mucus. Mullein is the herb you reach for when the lungs are wet and clogged, dry and raw, or anything between. The same plant covers both ends of the spectrum because of how its chemistry stacks.
Quick Facts
Verbascum thapsus
Scrophulariaceae
Leaf (primary), flower (ear oil), root
Cool, slightly moist
Expectorant, demulcent, lymphatic, anti-inflammatory
Bronchitis, asthma, COPD, lymph stagnation, otitis
What It Is
Mullein is a tall biennial that spends its first year as a fuzzy rosette of silver-green leaves and shoots up a six-foot yellow flower spike in year two. Native to Europe, naturalized everywhere in North America — roadsides, gravel pits, burn scars, disturbed soil. Verbascum thapsus is the standard medicinal species; several other Verbascums share the use.
The leaves and the bright yellow flowers are the two main medicines, and they are not interchangeable. The leaf is the lung herb. The flower is the ear and nerve oil. Roman soldiers dipped the flower stalks in tallow to make torches — which is why one of its folk names is "hag's taper."
How It Works
Mullein leaf does something almost no other respiratory herb does — it is simultaneously a demulcent and an expectorant. Most herbs are one or the other. This is why a single tea handles both productive cough and dry hacking cough.
Three Mechanisms
The polysaccharide mucilage coats irritated bronchial mucosa, reducing the cough reflex from dryness — the same way marshmallow does, but with the bonus of acting deeper in the respiratory tract.
Triterpenoid saponins reduce surface tension on respiratory secretions — converting thick, glued-on phlegm into something the cilia can move. This is why mullein actually clears congestion rather than just suppressing the cough.
Aucubin and verbascoside are anti-inflammatory and mildly antiviral. This addresses the underlying irritation that drives chronic cough and recurrent bronchitis, not just the symptom.
Mullein also moves lymph. Eclectic physicians used it for boggy, congested lymph nodes and chronic upper respiratory swelling — anywhere fluid was stuck in the connective tissue around the chest, throat, and ear canal.
Traditional Use
Dioscorides recommended mullein root for diarrhea and the leaf for lung complaints in the 1st century. The Eclectics treated it as the premier herb for tuberculosis symptom management before antibiotics existed — not curing TB, but enabling patients to expectorate and breathe.
In the Anglo-American tradition, mullein was indicated for:
- •Wet, productive cough with rattling mucus — pneumonia recovery, bronchitis, post-viral lingering cough.
- •Dry, hacking cough — irritated trachea, croup, smoke inhalation, allergic cough.
- •Asthma and COPD maintenance — tones bronchial tissue, supports clearance, not a rescue herb.
- •Otitis (ear infection) — flower-infused olive oil dripped into the canal, often with garlic.
- •Lymphatic congestion — swollen glands, mastitis, chronic tonsillar enlargement.
- •Smoked leaf — historically smoked or vaporized for acute asthma and chest tightness. Not recommended in active disease today, but the tradition is real.
Matthew Wood teaches mullein as a tonic for the "hollow organs" — lungs, ears, joints — wherever there is a chamber that needs to drain.
Dosing Protocol
Tea (Strain Through Cloth)
Critical: mullein leaves are covered in fine hairs that irritate the throat if swallowed. Always strain through cheesecloth, a coffee filter, or a tight mesh. A standard tea strainer is not enough.
- • 1-2 tsp dried leaf per cup of just-boiled water
- • Steep covered 15 minutes
- • Strain through cloth or coffee filter
- • 2-3 cups per day for acute respiratory issues
- • Sweeten with honey for cough — both palatable and soothing
Tincture
- • 1:5 in 40-50% alcohol
- • 2-4 mL, 2-3x daily
- • Easier for travel, acute use, and when symptoms make brewing hard
Mullein Flower Ear Oil
- • Fresh yellow flowers packed in olive oil, solar infused 2-6 weeks
- • Warm to body temperature; do not microwave
- • 2-3 drops in affected ear; tilt head 5 minutes
- • Often combined with garlic-infused oil for otitis externa or media
- • Never use if eardrum is perforated
Smoked / Steam Inhalation
- • Historical: dried leaf smoked for acute bronchospasm — not recommended today
- • Modern preferred form: steam inhalation
- • 1 Tbsp dried leaf in a bowl of hot water, towel over head, breathe 5-10 minutes
- • Useful for sinus and upper bronchial congestion
Contraindications & Cautions
- ⚠Strain the tea: Unfiltered leaf hairs cause throat irritation and itchy mouth. Use cheesecloth or coffee filter.
- ⚠Perforated eardrum: Never put oil of any kind in the ear if the drum is perforated. Get a tympanic exam first if you are unsure.
- ⚠Acute asthma: Mullein is a tonic, not a bronchodilator. Use alongside, not in place of, a rescue inhaler.
- ⚠Pregnancy: Considered safe in tea amounts. Limited data on concentrated extracts.
- ⚠Seeds: Mullein seeds contain rotenone and saponins toxic to fish. Do not ingest the seed.
Best Products
Starwest Botanicals — Organic Mullein Leaf, Cut & Sifted
Bulk leaf for tea and steam. Bright green, properly dried. Best price per ounce.
Check Price on Amazon →Herb Pharm — Mullein Liquid Extract
Whole-plant tincture. Convenient for acute bronchitis when you can't brew tea.
Check Price on Amazon →Wally's Natural — Mullein Garlic Ear Oil
Pre-made flower + garlic infusion in olive oil. The classic combination for otitis.
Check Price on Amazon →Related Ingredients
Marshmallow Root
Layer for severe dry cough or post-bronchitis raw throat.
AntiviralElderberry
Stack for viral bronchitis. Elderberry hits the bug, mullein clears the lungs.
Astringent + DemulcentPlantain Leaf
Companion for thick-mucus chronic bronchitis.
DiaphoreticElderflower
Pair for upper-respiratory inflammation with fever.