How long it takes for pain from a traumatic brain injury to heal cannot be generalized and depends on the severity of the traumatic brain injury. It usually takes 1 week to 1 month, and some severe craniocerebral injuries may take longer. 1. Mild craniocerebral injury: for example, concussion, patients may have headache, dizziness, nausea, vomiting, after active treatment for 1 week, the vast majority of patients with headache, dizziness symptoms reduce, some patients may be 2 weeks symptoms disappear. 2. Moderate craniocerebral injury: for example, traumatic subarachnoid hemorrhage, the patient’s headache is aggravated, accompanied by obvious nausea, vomiting symptoms, after 2-3 weeks of treatment, the patient’s pain manifestation begins to gradually reduce, and the symptoms may disappear in about 1 month. 3. Severe craniocerebral injury: patients have consciousness disorder, drowsiness or even coma or agitation, life-threatening, often need emergency craniotomy to remove hematoma treatment. After surgery, patients will wake up with obvious headache and dizziness, and after active treatment, the pain symptoms will gradually disappear. Once craniocerebral injury occurs, it is necessary to go to the hospital in time and actively cooperate with the doctor’s treatment in order to control the condition and improve the symptoms.