Hot compress treatment for tennis elbow patients is relatively simple and can be done independently. The main injury point of tennis elbow is located on the lateral side of the elbow joint, so patients can usually use hot towels or hot water bags to apply hot compresses to activate the blood, relieve tendons and relieve pain locally. This can be done with blood-boosting and tendon-relieving herbs, which are decocted in water and then applied to the outside of the elbow joint with a towel soaked with the medicine, repeatedly. Pay attention to the temperature of the hot compress towel and hot water bag to avoid high temperature burns. Tennis elbow, also known as humeral epicondylitis, is a condition in which the main problem is strain on the muscles on the outside of the elbow joint. The muscle strain occurs due to overwork and burden, which is manifested as soreness and pain, and is aggravated when exerting force. Hot compresses can accelerate blood circulation near the starting point of the local muscles, and with drugs can further invigorate the blood and relax the tendons. Early mild tennis elbow can be relieved with good results by applying hot compresses.