At last a lotion that prevents poison ivy, poison oak and poison sumac dermatitis! Its name is "Ivy Block" and it is the first and only such skin protectant approved by the FDA. It sells for less than $8.00 in a four ounce bottle at pharmacies and department stores. Fifteen minutes after it is applied, it can react with the poisonous liquid in these plants and blocks the allergic skin reaction that otherwise can start to develop within ten minutes. The protection provided by "Ivy Block" lasts up to four hours. This new product should be well received by people whose outdoor activities may involve contact with one or more of these poisonous plants.