Symptoms of chronic calf muscle strain include pain, soreness and swelling with limited movement. Chronic calf muscle strain is a chronic injury caused by prolonged walking, running or standing, which is not treated in time. Generally, it can be manifested as soreness and weakness of the calf muscles, or localized pressure and pain symptoms, and the serious injury can cause dysfunction, resulting in limitation of calf activities, walking inconvenience or even walking difficulties. When chronic strain injury of calf muscle occurs, more attention should be paid to bed rest, reduce the activities and exertion of the legs. Attention should be paid to local warmth, local hot compresses, massage, physiotherapy, accelerate blood circulation, promote the metabolism of inflammatory substances. Under the guidance of the doctor, celecoxib can be used to carry out analgesic treatment, but also in the local external application of flurbiprofen ester paste treatment. When the calf muscle chronic strain injury should be timely medical treatment, under the guidance of the doctor actively line appropriate treatment, help early relief of discomfort symptoms, do not blindly use drugs.