... according to the applied place when it is used, press close to the joints and muscles to make the treatment ... It can adapt unlimited times of alternately cold or hot use after pre-cooling or pre-heating treatments.Indications:Cold ... , toothache, sunstroke, scald, muscle scuffing, sprain, trauma, beauty etc.Hot compress:arthritis, rheumatism, stomach trouble, cervical vertebra trouble, sciatica, and ...