Mullein, Verbascum spp., leaves are most commonly used for respiratory complaints. They have a soothing, hydrating effect on the lungs and contain saponins that loosen mucus. Mullein is often used for chronic lung problems such as asthma and COPD, but is often helpful for colds and coughs, particularly dry coughs. Mullein flowers are used to make ear drops to soothe earache. Mullein root is specific for low back pain and inflammation.
Mullein seeds contain the poisonous substance rotenone. Mullein leaf and flowers are generally regarded as safe.
This can be taken as an infusion, tincture, glycerite, or oil.