Herbs, plants with biological activity, have both good and harmful consequences when used medicinally. Many people know that plants can be toxic, especially those commonly regarded as “poison” plants (such as poison ivy, poison oak, and poison sumac). However, what hurts one person can help another. An old and well-known homeopathic treatment for some types of joint pain, such as that caused by fibromyositis or fibromyalgia, is poison ivy (Rhus toxicodendron). Raw honey, aloe vera, chamomile, and red tea (Aspalathus linearis), a medicinal plant introduced to the USA from South Africa, can be used internally or externally. The presence of alpha-hydroxy acids in red tea has piqued interest in its external uses. It is important to note that herbs administered topically can cause unpleasant reactions in dermatology, just as herbs taken internally might cause unfavorable cutaneous reactions.