Vervain (blue)

Blue vervain may be used internally to treat fevers, coughs, cramps, jaundice, and headaches. Externally, it is used for acne, ulcers, and cuts. It may have anti-inflammatory, antibacterial, antispasmodic, and analgesic (pain-relieving) properties. People use vervain to relieve anxiety and depression, aches and pains, sleep issues, and reduce cancer risk.
Caution: Blue vervain can interfere with blood pressure medication and hormone therapy. Do not use if pregnant or breastfeeding.