Fever should not be applied to the forehead with heat. It is recommended that feverish patients apply cold compresses to the forehead for cooling purposes. Patients with fever can have central nervous system symptoms, such as dizziness, headache, nausea, vomiting, and even convulsions and coma. After applying cold compresses to the forehead of fever patients, it can reduce the basal metabolic force of brain cells, reduce the ischemia, hypoxia and edema of brain cells, which can help improve the symptoms of the central nervous system and can promote the recovery of the disease. Therefore, it is recommended that patients with fever apply cold compresses to the forehead, while drinking more water and taking more rest, in order to treat the disease.