Painful symptoms of a twisted arm tendon are caused by a contusion of soft tissue that leads to pain. If you have pain in your arm, first of all, you should stop your activities, start resting, avoid straining, and do not work. Secondly, you can use a forearm sling to hang your arm in front of your chest, and you can apply ointments that activate blood circulation, reduce swelling and pain. For example, gold ointment, wound and dampness pain relief cream, Wan Ying cream, dog skin cream, etc. These creams belong to the category of traditional Chinese medicine. You can also apply flurbiprofen babu cream, diclofenac sodium paste, etc. These creams belong to the category of Western medicine, which have anti-inflammatory and analgesic effects. Then, physical therapy such as magnetic therapy, electromagnetic therapy, and transdermal medicine can also be done to relieve the symptoms of pain. Finally, if the symptoms are not relieved, you should go to the hospital in time to do further auxiliary examinations to clarify the diagnosis so as not to delay the condition.