Poison ivy rash is the skin's reaction to the oily resin called urushiol (oo-roo-she-all). Urushiol is found in the leaves, stems, and roots of poison ivy, poison oak, and poison sumac plants. To identify the plants that grow in your area, see our poison ivy map of the United States.
According to the American Skin Association1, approximately 85% of the population is allergic to these plants. In most cases, a poison ivy rash can be treated at home with over-the-counter solutions. However, if a rash lasts for more than 2 weeks and doesn't appear to improve, it is recommended to seek care from a medical professional.
The symptoms and severity of poison ivy rash can vary from person to person. Generally, the symptoms of a poison ivy rash are:
These symptoms will typically appear within 48 hours after exposure. They can last anywhere from 2-4 weeks. In some cases, the rash appears as small scratches that are often confused with minor trail scrapes. However, most often poison ivy rash is red with small bumps or blisters. See our reference images of what poison ivy rash looks like.
The key to poison ivy rash prevention and care is to remove the oil! Using a poison ivy wash, like Tecnu Original or Tecnu Extreme is the first step in the battle against poison ivy. If used within the first 8 hours after exposure, a poison ivy wash can remove the oil before it bonds with the skin and causes a rash. If a rash has already appeared, it is still important to remove the oil to keep poison ivy rash from spreading. In addition to cleansers, there are a few other precautions to take:
So, what is the best treatment for poison ivy? The first step is to remove urushiol from the skin whether a rash has appeared or not. The second step is to wash items that could cause secondary contamination: clothing, tools, equipment, even your dog. If a rash appears, apply a topical anti-itch treatment.
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