Poison-oak is common in Oregon, particularly near the Columbia River Gorge. It carries an oil that can cause a rash if it comes in contact with skin. The plant may appear as a vine, shrub, or small tree. The leaves are normally indented and oak-like in shape and may be green or red. The surface of the leaves is often shiny or waxy. Poison-oak leaves grow in groups of three. Learn to recognize poison oak and avoid it.

Protect yourself from poison-oak by wearing long pants and long sleeves. If you do come in contact with it, wash clothing as well as skin. Calamine lotion and creams containing Benadryl or cortisone can help relieve rash symptoms. Oral antihistamines may also be useful.