After the head is smashed, if there is simply dizziness, the headache is not violent, it is still tolerable and there is no other state, you just need to rest in bed, ensure sufficient sleep and ensure adequate nutrition, basically. However, if the dizziness and headache are more intense and not relieved after rest, and accompanied by nausea and vomiting, you must go to the hospital for the corresponding examination, which may be the reaction of concussion, and need to take oral medication for the corresponding treatment. If it is a little more serious, not only dizziness but also coma occurs, you must go to the hospital, it may be a brain contusion, not only oral medication, but also intravenous drip, hemostasis, dehydration to lower cranial pressure, improve cerebral circulation brain protection drugs. If the treatment is purely symptomatic, you can start with oral betahistine and flunarizine hydrochloride. But it is important to exclude other conditions that are very important, and it is necessary to observe changes in the condition for three days, and in many cases there are cases of delayed hematoma, resulting in more serious consequences.