The leaves, stems and fruit contain a non-volatile, poisonous oil known as toxicodendrol. When this oil comes in contact with the skin it produces a severe irritation and inflammation on most persons. The plant is dangerous the year round. Some protection can be obtained by rubbing the legs, face, arms and hands with a pasty lather of strong, brown laundry soap, allowed to dry on the skin. As soon as possible after contact with poison ivy, wash the exposed skin with this same soap and rinse thoroughly.
Some authorities also recommend alcohol, gasoline or baking soda.
If a rash appears, see your doctor immediately. Argonne National Laboratory, Division of Educational Programs, Harold Myron, Ph.D., Division Director.