What are the most common side effects associated with using DEET?
DEET and other repellent ingredients will sting the eyes. This goes away immediately when you flush your eyes with water. Very rarely, some people develop a skin rash. It clears up quickly when the repellent is washed from the skin. This may be related to other ingredients in the formulation. Anyone routinely sensitive to cosmetics, fragrances or shampoos, etc, should try a small amount of an unscented DEET-based repellent on the underside of the wrist to see if there is a skin reaction.
