Poison oak also contains urushiol, so exposure can cause itching, hives, and other skin problems. In the Eastern United States, the poison oak plant grows in low shrubbery, so it is easy to come into contact with the plant while hiking or participating in other outdoor activities. Seek medical attention if the poison oak rash covers a significant portion of your skin, or if the rash is near one of your eyes. We will assess the rash and provide treatment to reduce discomfort and prevent complications.