Physical therapy is physical therapy. Its advantages are wide range of action, no injury, no pain and relative safety, and it has different therapeutic effects on many diseases and injuries. Nevertheless, patients who do physical therapy should master certain knowledge and actively cooperate with doctors in order to improve the curative effect, shorten the course of treatment and ensure safety. Physical therapy is the use of weak external physical factors to cause physiological reactions of the human body, and through these reactions, it affects the function of the human body, inhibits the cause, and promotes the rehabilitation of injuries. Therefore, physical therapy should be carried out in a quiet, clean and harmless environment, in which the therapeutic effect of physical therapy can be fully exerted. Physical therapy, like taking medicine by injection, depends on observing the time. Timely treatment can not only accumulate curative effect, but also shorten the course of treatment. If the timely treatment is often interrupted or delayed, not only the curative effect will not be accumulated, but also the existing curative effect will be reduced or lost. Patients who are receiving physical therapy should not take the initiative to increase other therapies, so as not to affect the physical therapy effect, and should not increase the current without authorization, otherwise it may cause physical damage. Generally, before physical therapy, the staff will tell the patients what they should feel, what they should not feel, and the problems that need attention and cooperation, and the patients should strictly follow them. For a period of time after physical therapy, avoid the influence of other unfavorable factors on physical therapy. Because the physiological reaction caused by physical therapy still exists after the end, if there are no external unfavorable factors, this reaction will last for a period of time and prolong its curative effect. Therefore, after the physical therapy, you should rest outside the treatment room for 20 to 30 minutes, and don't rush back as soon as the treatment is over. After physical therapy, some patients may have some side effects, such as abnormal skin color, stiff muscles, and even aggravate the original symptoms. Most of these reactions are normal and generally disappear on their own. But no matter whether the reaction is abnormal or normal, you should truthfully report the situation to the doctor.