Stop use of the product and get medical help right away if you experience serious skin reactions such as pain, swelling or blistering. Know that all topical pain relievers containing menthol, methyl salicylate or capsaicin produce a warming or cooling sensation where they are applied. They should not cause severe pain or skin damage. Always follow the directions provided with the products. Do not apply the product to broken, damaged or irritated skin, and do not bandage the area tightly or apply heat (for example, by using heating pads, lamps, or hot water bottles). This can increase the risk of side effects including serious skin burns. Talk to a health care professional such as a pharmacist if you have any questions or concerns about these products. Report adverse events to health products to Health Canada by calling toll-free at 1-866-234-2345, or by reporting online, by mail or by fax .