... the head and neck. For instant cooling, calming relief, use with or without oral medication, whenever headache or migraine pain strike ... steady cooling effect that lasts up to 8 hours.How does it work?Cooling Gel Sheet contains a high percentage of water ... in summer4. Apply to relief headache, toothache, etcCustomer group Applied with a fever, headache, stuffy nose, tooth pain, sprains local heating ...