High fever to convulsions, if the duration is short, usually no sequelae, if the duration is longer, may cause neurological sequelae, such as epilepsy. In the clinical high fever patients are more common, high fever sometimes accompanied by symptoms of convulsions, if the duration is relatively short, usually no sequelae, etc.. If it lasts for a longer period of time, it may have some neurological effects. Frequent convulsions can cause great damage to the child’s brain function, and the brain cells will be necrotic, which may cause epilepsy and may affect the child’s intelligence. Therefore, you should go to the hospital as soon as possible to check and treat the high fever, you can use fever-reducing drugs under the guidance of the doctor, and if the convulsions are strong, you can use sedative drugs appropriately to control the symptoms. In addition, the cause of the fever should be determined, and treatment should be directed at the cause of the fever.