When certain insects bite or sting you, they leave behind their saliva or venom just under the surface of the skin. This may cause your body to react. The Bug Bite Thing is a suction tool that extracts the irritant and helps alleviate the itching, stinging and swelling that occurs with the bug bites and stings. Reviews show that people have found the Bug Bite Thing to be helpful with bee stings and fire ants. Reusable.