The function and efficacy of ice compress after injury is to reduce swelling and relieve pain.
After the injury, the use of ice treatment, so that the local temperature will be reduced, blood vessels will be contracted, the permeability of blood vessels will be reduced, the exudation will be reduced to prevent further aggravation of swelling, which can promote the gradual subsidence of swelling.
After applying ice, the nerve conduction speed will be slowed down, the excitability of the nerves will be reduced, and the pain threshold will be raised, so the pain can be reduced.
Ice can make the local temperature lower, the metabolism will decline, the production of free radicals and other harmful substances to reduce, so ice can prevent further aggravation of tissue damage.
In the process of ice treatment, if the symptoms worsen, you should go to the hospital in time.