Poison Ivy/Poison Oak/Poison Sumac:
Contact with plants like poison ivy, poison oak, and poison sumac can cause a rash or skin irritation. It is the oil found in the plants that causes the rash. This oil is called urushiol.
After you come in contact with the oil, the itchy and blistering rash appears after 12 to 72 hours.
Most people see the rash go away in a few weeks. If you have a serious reaction, you need to see a dermatologist right away. A rash from poison ivy, oak, or sumac usually lasts 1 to 3 weeks. Most rashes go away without treatment.
It is important to know and understand what Poison ivy, poison oak, and poison sumac look like to avoid contact.