Stem of Wormwood Artemisinin-containing products may have potent antimalarial properties. Herb for co-infection. Aids in the relief of joint, limb, cartilage, ligament, and tendon discomfort. It may aid with chest tightness, electrical-like intense shooting pains, scorching discomfort, night sweats, nightmares, and emotional discord. Wormwood is one of the most effective herbs for Lyme disease because it is one of the most effective herbs for co-infections.