by Heather Colley

Created on: July 13, 2009

Leaves of three, let them be. This mantra has been quoted multiple times over the years, as poison ivy, poison sumac, and poison oak can be found throughout the United States. Yet it can be easy to forget where the poison plants are located as you concentrate on the tasks at hand.

These plants would not be a problem except for a byproduct of the plants called resin. Resin causes an allergic reaction characterized by rashes, itching, and oozing blisters. This resin needs to be washed off the skin within fifteen minutes to minimize the effects of the reaction. If you do not get this resin off in time, then the rash can appear for up to several weeks following contact with the plant.

There are several products you can take for the treatment of poison ivy, sumac, and oak. The most common are the hydrocortisone creams, such as Benedryl lotion, Caladryl lotion, and Zanfel. Most creams are considered too weak to do much good, unless they contain steroids, but they may provide temporary relief.

If you do have a rash, avoid the sun as much as possible. Stay in a cool environment, with a fan directed to the rash. Sweating will aggravate the itching, and scratching can infect the skin and prolong the healing process. It can take up to two weeks or longer for the rash to go away.

If you notice that the affected skin becomes swollen or leathery, you will need to seek medical attention. The doctor may prescribe steroidal creams. If the area with the rash is widespread, or does not respond to creams, the doctor may prescribe oral steroids, such as Prednisone. You may also receive a steroid shot. These steroids are not the same type of steroids taken by athletes, but are considered safe for a short-term use.

Oral steroids will be given in a large dose at first, and then the doses will taper off. This is to prevent rebound rashes or itching. Common side effects include insomnia, dry mouth, increased appetite and bloating. These will subside as the medication tapers off.

If you decide to remove these poisonous plants from your property, be sure to wear gloves, long-sleeved shirts, and pants. Wash these items as soon as possible when you are finished to prevent coming in contact with the resin on the clothing. Never burn these plants, as doing so will release the resin into the air. This will create airborne allergic reactions, which would be a severe medical emergency. Instead sever the plants at the base, and bury the plant parts.

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