Most of the tendon pain inside the arm is caused by improper exertion resulting in strain, but it may also be caused by strain or cold. Patients should pay attention to rest and reduce local activities, especially to avoid strenuous exercise. If the pain is relatively mild, local hot compresses can be applied to reduce the pain, or local Yunnan Baiyao ointment or blood pain relief ointment can be applied after the hot compresses, together with local massage, massage, acupuncture, infrared radiation and other physical therapy. If the pain is severe, oral anti-inflammatory and analgesic drugs such as Nimesulide dispersible tablets or Celecoxib are needed to reduce the local pain. At the same time, oral blood-stasis-activating drugs can be taken to promote tissue repair and local inflammation and edema, such as Shu Shu Shu Blood Tablet or Dragon Blood Capsules.