If the headache is caused by cold, hot compresses can relieve the stimulation of cold and make the blood vessels in the head dilate, which can significantly help to reduce the symptoms of headache. In addition, headaches caused by spasm and stiffness of the neck muscles, which compress the vertebral artery and make the vertebral artery contract, and the blood supply to the back of the brain is reduced accordingly, this situation can also be significantly relieved by applying hot compresses with towels. There are also some patients with headaches caused by gastrointestinal weakness and dysfunction, which are often accompanied by functional indigestion symptoms such as constipation and diarrhea. In this case, in addition to hot compressing the head, you can also hot compress the gastrointestinal department, as well as the lower extremities of the foot Sanli point, Yongquan point, Hegu point and other points, can also significantly relieve the headache.