A portable, battery-powered device intended to be used for the external treatment of insect bites or stings (e.g., from midges/gnats, mosquitoes, wasps, hornets, horseflies) through the application of concentrated heat. The heat (around 50? Celsius) works to minimize or prevent itching, and may prevent subsequent swelling. It typically consists of a pocket-sized, hand-held housing containing electronics, batteries, and a skin-surface contact plate. It is available [non-prescription] over-the-counter (OTC) for home-use. This is a reusable device.