Safflower oil has some relieving effect on tennis elbow, but the effect is limited, tennis elbow still needs comprehensive treatment. Tennis elbow, also known as epicondylitis of the humerus, is mainly caused by long-term strain, and is named after tennis players and badminton players. Safflower oil belongs to the Chinese patent medicine, the ingredients mainly include cinnamon oil, ice bark, citral, etc. It has the effect of dilating local blood vessels, improving microcirculation and reducing edema. It has a certain relief effect on the pain and swelling caused by humeral epicondylitis. Although safflower oil can relieve epicondylitis of the humerus, but the role is limited, many times need to carry out a comprehensive assessment, standardized treatment. Such as the acute stage patients, need to carry out the affected limb braking, ice and other treatments. Patients with more pronounced pain can take oral painkillers such as ibuprofen and diclofenac sodium. Conservative ineffective patients, some may also need surgical intervention and so on. If the patient’s symptoms are severe, or if the symptoms persist without improvement, he/she should go to the hospital in time for treatment. All of the above medications should be used under doctor’s supervision, avoid self-medication.