Common plantain (*Plantago major*) is a humble weed with deep roots in herbal practice. People use the leaves in teas, poultices, salves, and tinctures.
Applied to the skin, it soothes minor issues like bug bites, stings, and small scrapes. Some folks drink the tea for occasional stomach upset or a scratchy throat. The evidence behind internal use is thin.
Watch for skin allergies if you put the raw plant on your body. Drinking it can upset a sensitive stomach. Pregnant and nursing women should be careful since no good safety data exists. No clear drug interactions are on record.