Boils are usually caused by internal dampness and fire, external wind or summer and fall dampness and heat, and are not usually caused by Yin deficiency and fire (deficiency of Yin essence in the body, which leads to hyperactivity of deficiency and fire). Boils, also known as boils, are acute suppurative diseases that occur in the superficial parts of the skin and are small in scope, which occur mostly due to internal dampness and fire, external wind, impeding the skin or due to summer and fall summer dampness and heat toxicity, and are solid in nature, and the treatment is based on clearing heat and removing toxins (removing heat and toxins in the body). In addition to the symptoms of yin deficiency and fire exuberance, people with yin deficiency may also show symptoms of deficiency heat, such as five heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest), hot flashes (a burst of heat), night sweating (abnormal sweating after going to sleep, and sweating stops after waking up), etc. The treatment is to nourish yin and reduce fire (nourish yin essence and lower the fire), which usually does not lead to boils. Patients with symptoms of boils are advised to seek medical treatment in a timely manner and under the guidance of a physician to carry out targeted treatment, not blindly self-medication, and to pay attention to a light diet during the period of illness, avoiding spicy and greasy food.