I have the "Thermo-mosquito bite healer" specially appointed me for the summer - batteries I had to then buy extra. With a clear conscience I went to sleep after an extremely hot day on the Croatian Adriatic coast - half an hour later it began the annoying hum of small pests on. "Let them myself yet standing", I thought to myself, what proved to be a fatal mistake the next morning. So did the supposed bite healer placed on the thick swollen mosquito bite, held the button down and waited expectantly. It was getting hot and the light was extinguished, but the nagging itch remained. Ergo: I looked ten days out as a pubescent teenager, only that I was not covered with pimples but with mosquito bites. The remaining vacation days I drew the black-white-striped tiger mosquito - Zebra mosquitoes or whatever called this spawn of hell - with the fly swatter and insect killer spray to the skin. The insect bite healer will probably end up in the garbage.
In short, the part showed neither with me nor with my girlfriend impact, I would not buy it again.