Poison Oak

Poison oak is a common hazard for hikers and walkers in the West. Poison oak sap contains a chemical that irritates the skin. The poison oak sap binds to the skin within about 15-30 minutes of contact, but can be washed off with soap and water before then. The first symptom of poison oak allergy is severe itching, followed by inflammation and blisters. A few people develop extreme allergic reactions to poison oak that include swelling of the eyes and require emergency treatment.

Recognizing Poison Oak

Poison oak has leaflets in groups of three, so just remember the old saying "leaves of three, let it be." You'll avoid some plants that aren't poison oak, but it's easy to remember and implement. The poison oak plant can grow as a shrub or a vine, and it has hairs on its stems.

Poison Oak Prevention

Wear long sleeves and pants if you will be in area where poison oak grows. Be careful to take your clothing off immediately when you return home and wash it because the poison oak sap can stick to it and affect you later.

There are over-the-counter medications such asZanfel that prevent the poison oak sap from penetrating the skin, but U. S. Forestry Service personnel use a simple method - they spray deodorant on exposed skin to help neutralize the poison oak sap.

What to do if you get a rash

Ice can help relieve the itching, and calamine lotion is the time-honored itch-reliever.