Health

Information on the causes, prevention, and treatment of the itching and painful rashes associated with contact of the oil called urushiol that is found in these plants. Includes numerous links to other information sources and websites on commercial products.

Pictures, reference, and quiz on poison ivy's identification, rash, treatment, and the urushiol oleoresin.

Consumer health resource center providing and overview of the key identifiers, symptoms, and treatments of three topical plant allergies. From eMedicine Health.

General information, its history, treatments, etiquette rules, and anecdotes.

Brief technical article on allergic reactions to poison ivy, including physiology, treatment options and links to related information.