Poison ivy (poison oak, poison sumac)
About Poison ivy (poison oak, poison sumac)
A common cause of a skin irritation called contact dermatitis or pruritic dermatitis results from contact with the urushiol resin that poison ivy contains. This results in a red, itchy rash consisting of small bumps, blisters or swelling. Similar reactions occur after contact with poison oak and poison sumac.Symptoms
Redness, itching, weeping, swelling, small bumps on the skin.Tests & Diagnostics
A history and physical exam will be performed.OTC sleep aids and supportive treatments
Prescription medications
Conventional treatment summary
Treatment includes: removal of the exposure and cleansing of the skin. The affected skin needs to be cleaned with soap and water as soon as possible since only 50% of the resin can be removed after 10 minutes have passed. Topical steroids either over the counter (1% hydrocortisone) or by prescription are administered for mild cases. Oral steroids such as prednisone (Deltasone) are used for more severe reactions. Over-the-counter topical anti-itch medications (such as Calamine lotion) can be helpful. An over the counter oral antihistamine such as diphenhydramine (Benadryl) can also reduce the itching. It is important to clean all clothes and shoes that came in contact with the plant as well to prevent re-exposure.Medical specialties
Internal Medicine · Dermatology · Pediatrics · Family Practice · Pediatric Dermatology
This page is educational content, not medical advice. Always consult a qualified clinician for diagnosis and treatment of Poison ivy (poison oak, poison sumac).