... pack 2.hot or cold compress to painful area 3.Certification MSDS, CE, ISO13485 4.supply OEM cold hot pack Characteristics: 1 ... hot use after pre-cooling or pre-heating treatments. Indications: Cold compress:headache, fever, toothache, sunstroke, scald, muscle scuffing, sprain, ... trouble, sciatica, and strain of lumbar muscles etc.Usage Cold compress:Use after put in the icebox or freezing box (minus ...