Most patients with tennis elbow are treated with closed injections and can be completely cured. Prednisolone acetate and lidocaine are usually used for injection, but the process of injection must pay attention to aseptic operation and try to avoid local infection. Avoid touching water for 24 hours after the injection, and pay attention to rest and protection to avoid excessive strain and minimize local stimulation. Patients should stay away from cold and damp environments and pay active attention to warmth, applying local heat packs with salt bags or hot water bags, as well as physical therapy methods such as acupuncture and baking. Topical anti-inflammatory and analgesic creams can be applied topically to relieve local pain, or non-steroidal anti-inflammatory and analgesic drugs can be taken orally to relieve the patient’s local pain symptoms, and the patient will recover slowly.