On traditional Chinese medicine say "warm then pass, general rule is not painful", with towel hot compress is to achieve the effect of lukewarm pass actually. When hot compress, should choose clean towel, immerse in hot water in 40 -- 45 degrees Celsius, apply after wring to be in sicken place, when contacting the skin, should have no burning pain. It is best to cover the affected area with a clean cloth or cotton pad. Change towel every 5 minutes commonly, had better use alternately. Apply for 15-20 minutes, 3-4 times a day.