If an individual suspects they have tendinitis, the initial treatment should consist of avoiding the positions and activities that produce any pain. A course of conservative treatment is usually recommended that would include rest and immobilization, possible splinting, ice, physical therapy and non-steroidal medications to reduce inflammation. If symptoms persist, treatment by your physician may be necessary. This may include steroidal medication or injections, in conjunction with therapy. In severe cases, surgical intervention may be needed to correct any mechanical causes of the tendon irritation.