Based on anecdotal evidence and published studies, there are no reports of major side effects from mullein. Some species of mullein may cause contact dermatitis , a skin reaction that can cause itching, rash, and irritation.

Is mullein good for the lungs?

Mullein is a supreme, safe, and profound respiratory tonic. It helps open the lungs, eases spasms, tightness, and cough, and soothes irritation and dryness. This common weed can be wildcrafted or seeded in the garden. Mullein prefers sunny, open, disturbed soil in lawns, meadows, and gardens.

Can you take mullein everyday?

No recent clinical evidence supports specific dosage of mullein; however, traditional uses of the herb suggest 3 to 4 g of flowers daily and 15 to 30 mL of fresh leaf or 2 to 3 g of dry leaf.