How it works: Anti-venom devices may neutralize mosquito bites

Mosquito-bite induced scratch attacks might be a thing of the past if you're willing to heat your bites with electric shocks, a process rumored to soothe the itch. Therapik, a battery-powered device can do it for you by aiming a small infrared light, about 122 to 140 degrees, at the bite for about 30 seconds. The Wall Street Journal examines this device, which was cleared by the FDA in 1997 and sells for $12.95, and several others that are similar. Therapik claims the device can neutralize venom from over 20,000 different species of insects and sea creatures, although scientists dispute the veracity of the claim, stating instead that the device works by temporarily distracting the body's nervous system. Story (sub. req.)