Tendonitis occurs commonly due to two reasons: overuse, which means excessive local activity, and trauma. Both causes lead to local aseptic inflammation of the tendon, resulting in edema, exudation, swelling, and pain. Moxibustion can be effective in this situation because it helps in activating blood circulation, reducing stasis, relieving swelling, and alleviating pain. The specific locations for applying moxibustion include the painful tendon area, and since the tendon is an extension of the muscle, not only the painful tendon area should be treated with moxibustion, but the entire muscle bundle can also be treated to help relieve overall muscle and tendon spasms and reduce pain.