The principle is cold first and then hot, step by step. Cold compress can make local capillaries contract, and has the functions of hemostasis, antipyretic and analgesia. Cold compress should be carried out as soon as possible after trauma. The method is to apply a towel soaked in cold water to the injured part, and change it every 3 minutes 1 time.

You can also put ice cubes and ice water into hot water bags or plastic bags for direct external application for 20-30 minutes each time. The method is to soak the towel in hot water and apply it to the affected area, and replace it in time when there is no heat sensation, 30 minutes each time, 1 ~ 2 times a day.

You can also use hot water bottles, fried salt and other hot compresses. Hot compress can dilate local capillaries, promote blood circulation between lymph and tissues, accelerate metabolism, reduce swelling, relieve muscle spasm, facilitate the absorption of blood stasis and exudate, promote the regeneration and repair of damaged tissues, reduce adhesion and accelerate healing.

Not suitable for massage, because massage will promote blood circulation, affect the absorption of blood stasis, and delay the recovery of the disease.

If you are still not at ease, go to the hospital for examination.