They shouldn't be used by children under 12 unless a healthcare ... and patches—including menthol, methyl salicylate, lidocaine, or capsaicin. The Icy Hot Sleeve comes in one form and dosage.

Though unlikely, methyl salicylate used may also increase the risk of bleeding or stomach ulcers in people who regularly take aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs ...