The most common cause of shoulder and neck pain is chronic muscle strain, or lactic acid buildup after exercise. If the symptoms are clear or relatively short, patients can choose to paste plasters just for symptomatic treatment to treat themselves and relieve soreness. This kind of ointment has a cool sensation, and there are relatively more allergic cases, especially in summer, some people like to stick the ointment for a long time, and if they stick it for too long, they are prone to allergic reactions to the adhesive tape and local rashes, redness and swelling. If the effect is not good after topical application, it is recommended to seek medical attention in time to find the cause and carry out treatment. It should be noted that not all shoulder and neck pains can be solved by applying plasters, but it should be judged according to the cause of the patient. If the patient has a local lump or tumor, which is caused by pressing the surrounding muscles, if the cause is not removed, it is difficult to cure it, and the symptoms will be repeated. If the symptoms are not relieved within a short period of time (1-2 weeks), the symptoms can be temporarily observed.