If it is an acute onset of tendinitis, urgent treatment is recommended. This involves the use of RICE therapy, which is the internationally renowned "rice therapy," including four points: rest, ice, compression, and elevation of the affected limb. Secondly, you can take some non-steroidal anti-inflammatory drugs to reduce inflammation and pain. Thirdly, consider undergoing physical therapy, mainly including heat therapy, shockwave therapy, and microwave therapy, aimed at improving blood circulation and promoting healing. If the pain is particularly severe, you might also consider block therapy, but try to avoid it as it could potentially damage the tendon. Fifth, rehabilitation therapy can be conducted, which should be performed under the guidance of a physiotherapist and rehabilitation therapist. Thus, conservative treatment for tendinitis includes these methods. If some patients, especially those for whom conservative treatment is ineffective or even worsens symptoms, consider surgical treatment. However, surgical treatment should be strictly reserved for appropriate cases because it involves significant pain, potential complications, and a longer recovery time.