ASPERFLEX HOT (CAMPHOR, MENTHOL, METHYL SALICYLATE) PATCH [AKRON PHARMA INC.] on wounds or damaged skin with a heating pad if you are allergic to any ingredients of this product use only as directed avoid contact with the eyes, mucous membranes or rashes do not bandage tightly rash, itching or excessive skin irritation develops contisions worsen symptoms persist for more than 7 days symptoms clear up and occur again within a few days