By Dr. Cheryl Hull, dermatologist and owner of Hull Dermatology
During the last month, I have seen many patients with itchy skin from being outdoors. Whether the itchy skin is from chigger bites, mosquito bites, sun rashes, or poison ivy, itching in hot weather is not fun!
Many of the cases have involved poison ivy. Poison ivy is a plant that produces an oil (urushiol) that causes an allergic reaction among humans. The inflammation is a reaction to contact with any part of the plant, which leads to burning, itching, redness and blisters. The inflammation is a form of contact dermatitis, an allergic reaction to an allergen that comes into direct contact with the skin. It is not contagious.
Poison ivy is characterized by red, itchy bumps and blisters that appear in the area that came into contact with the plant. The rash begins one to two days after exposure. The rash first appears in curved lines and will clear up on its own in 14 to 21 days.
Treatment for poison ivy is designed to relieve the itching and may include oral antihistamines and cortisone creams (either over-the-counter or prescription). These treatments need to be applied before blisters appear or after the blisters have dried up to be effective. In severe cases, oral steroids, such as prednisone, may be prescribed.
The best form of prevention is to recognize and avoid contact with the plants. This can be difficult because these plants tend to grow around other vegetation. These three poison plants can be distinguished by their classic three-leaf formation. To avoid contact with these plants, wear long sleeves and pants when hiking outdoors and keep to the trails. Tuck the ends of your sleeves into gloves and the bottom of your pants into socks so that no area of skin on your arms or legs is exposed. If you think you have come into contact with a poison plant, wash the area of skin with cool water as quickly as possible to help limit the reaction. Also, wash the clothing you were wearing immediately after exposure.
For more info on dermatology-related issues, contact Dr. Hull by calling her office at 479-254-9662. “Beauty Buzz” is sponsored by Hull Dermatology, with offices in Rogers, Bella Vista and at the Eureka Springs Hospital. Dr. Hull has published several scientific papers and has received numerous awards and honors for her work in dermatology. For more info, click here to visit the Hull Dermatology website.
*Poison ivy photo from About.com