Acute injury-cold compressing
At this time, you should apply cold compressing according to the principle of "thermal expansion and contraction". When the external force hits the initial stage, that is, the acute injury period, the affected part will be swollen and inflamed. At this time, the principle of "cold shrinkage" should be used to let The area of swelling and inflammation is reduced. Such as sprained, inflamed, burned skin, or muscle spasm
Cold compressing can lower the body temperature and gradually cause vasoconstriction and lower metabolic rate, thereby reducing pain and controlling inflammation.
It is most convenient and dry to use a commercially available ice pack of Zehua or ice pillow when cold.
Subacute and chronic phase of injury - hot compressing
Swelling and pain caused by external force, after 48 hours or more, the wound has entered the subacute phase and the chronic phase, then hot compress can be started. If the muscles and muscles are sore because of poor posture, and the muscles are tight and stiff, then the principle of "thermal expansion" should be used.
The hot compress will increase the body temperature, relax the blood vessels, increase the metabolic rate of the body, help the blood circulation of the sore muscles, and relieve the symptoms of soreness.
Use a hot pack when hot, or a hot pad has a good effect. Use hot pack should pay attention to the temperature is not too high, so as not to burn the skin, you can repeatedly apply hot 1 to 3 times, each time 10 to 15 minutes.
Trauma in the acute phase after cold compress, if there is no red, swollen, hot, painful acute phase of inflammation, that is, into the subacute and chronic pain, you can use hot compress to promote tissue healing and circulation, reduce swelling and The phenomenon of bruising.