For example, poison ivy (Rhus toxicodendron) is a prominent and historic homeopathic remedy for certain kinds of joint pain associated with what might be called today fibromyositis or fibromyalgia.

Poison oak rash is an allergic reaction to the leaves or stems of the western poison oak plant (Toxicodendron diversilobum). Home remedies and medical treatments can help manage symptoms.

Allergic contact dermatitis. American Academy of Dermatology. Eczema types: contact dermatitis. Monroe J. Toxicodendron contact dermatitis: a case report and brief review. J Clin Aesthet Dermatol.