The Beurer BR60 Insect Bite Healer uses natural heat to dissolve saliva, venom, and other irritants caused by insect bites. Direct heat application via a ceramic hot plate acceleratres the body's natural healing response to reduce itching and swelling, chemical-free. There is a 6 second application time for regular use, or a short 3 second treatment for sensitive skin. For best results, use immediately after insect bites. Suitable to soothe all types of insects bites like mosquito, spider, bee, chigger, flea, bed bug, wasp, ants, etc. For adults and kids ages 12+ with adult supervision.