From the Guidelines
The most effective treatment for poison ivy is immediate washing with soap and water to remove the urushiol oil, followed by the use of cool compresses for symptom relief, as recommended by the 2024 American Heart Association and American Red Cross guidelines for first aid 1. The treatment for poison ivy involves several steps to relieve symptoms and promote healing.
- First, wash the affected area with soap and lukewarm water as soon as possible to remove the plant oil (urushiol) that causes the reaction, as this can remove up to 100% of the oil if done immediately after contact 1.
- Apply cool compresses to reduce itching and inflammation, as this may be considered for relief of local symptoms from exposure to poison ivy, oak, or sumac 1.
- Oatmeal baths may also be considered for relief of local symptoms from exposure to poison ivy, oak, or sumac 1.
- Topical corticosteroids, such as hydrocortisone, may not be effective in improving local symptoms, as demonstrated by a randomized, blinded trial involving 92 cases of Toxicodendron dermatitis 1.
- Avoid scratching to prevent infection and wear loose clothing over affected areas.
- The rash typically resolves within 1-3 weeks as your body processes the urushiol oil that triggered the allergic contact dermatitis.
- If the rash shows signs of infection (increased pain, pus, swelling) or affects your breathing, seek immediate medical attention.
From the Research
Treatment Options
- Local treatment is sufficient for mild to moderate cases of poison ivy dermatitis 2
- Systemic corticosteroids can be added in more severe cases to aid in the treatment process 2