Suction cups can be used upside down, large suction cups can be applied to large itchy area, such as the back of the hand, arms, etc., and small suction cups for small itchy area, such as fingers. Suction cups can be used upside down, large suction cups can be applied to large itchy area, such as the back of the hand, arms, etc., and small suction cups for small itchy area, such as fingers. Removes insect venom and other irritants left under the skin by bug bite remover, play a role to itch and swell. Small size (3.37 * 3.62 * 1.05") and lightweight (30g / 0.07lb) that easy to carry. Bug bite itch relief is clinically proven, kid friendly and works on a wide range of bites and stings, such as mosquitoes, bees, wasps, flies, fleas, no-see-ums, ants, chiggers, sea lice etc. The tool for bug bite relief is a small suction tool that quickly extracts insect poison from under the skin and eliminates the itching, stinging and swelling that occurs with bug bites.