I live in the south where there mosquitos and fire ants. I saw this product on air and thought what a great idea, but what's wrong with a hot wet cloth. I tried it and it worked. But, I got tired of running into my house to apply a hot wet cloth, so I ordered the Therapik. I should have stayed with the hot wet cloth. This product does not produce enough heat, and the application head is too small. I'm going to return the product and stay with hot wet cloths.