Twitching is a pathological phenomenon in which the muscle nerves do not move randomly.1. The common clinical manifestations of twitching include shrugging, blinking, facial muscle twitching, limb muscle twitching or straightening, corneal reflexion, nystagmus, etc. The common causes of twitching are mental stress, high fever, epilepsy, brain injury, rabies, tetanus, and so on. Common causes of convulsions include stress, high fever, epilepsy, traumatic brain injury, rabies and tetanus. If the twitching occurs after nervousness, you should adjust your mind, take deep breaths or rest for a while, the symptoms can usually be relieved.2. When children have convulsions when they have a high fever, they should be given Valium to control the convulsions and ibuprofen to reduce the fever, and at the same time, they should find out the causes of the fever and diagnose the cause of the fever and carry out the treatments. The common causes of fever in children are upper respiratory tract infections, meningitis, such as fever-free convulsions or a history of traumatic brain injury, first consider the possibility of epilepsy, due to abnormal brain discharges caused by the feasible electroencephalogram, cranial CT and other tests, diagnosis, and then according to the type of epileptic seizures to select the antiepileptic treatment of carbamazepine, valproate, and other drugs.