Using Grid-Relief Technology, the Itch Relief patches mechanically lift the skin (no chemicals) to drain the lymphatic system which has been injected by the mosquito's saliva that causes the itch. The Itch Relief Patches contain no chemicals. They work kinesthetically! The Itch Relief Patches will start working in 30-60 seconds to relieve the itch, and can last for up to 7 days (and are completely waterproof). Unpack and place on top of the mosquito bite.
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