how long after exposure to poison ivy does rash appear
The symptoms vary in severity from person to person. Urushiol (the allergenic component of the sap) can begin to penetrate the skin within 5-10 minutes of contact. Poison ivy rash can appear in as little as 4 hours or as long as 2-3 weeks after exposure.Generally, you'll see the first blisters within 1-14 days. Symptoms include: 1  Red, swollen, itchy skin with a rash that can be widespread depending on contact areas.he symptoms vary in severity from person to person. Urushiol (the allergenic component of the sap) can begin to penetrate the skin within 5-10 minutes of contact. Poison ivy rash can appear in as little as 4 hours or as long as 2-3 weeks after exposure.