Symptoms such as dizziness and vomiting after riding in a car are considered to be caused by motion sickness, which can be relieved soon after termination of parking by rest. If the symptoms are not relieved, betahistine mesylate can be taken orally to suppress vestibular nerve function and improve the symptoms of dizziness and vomiting. If parking cannot be terminated, it is recommended to sit near the window to improve air circulation and make the vehicle drive as smoothly as possible, which will improve the symptoms of dizziness and vomiting. You need to close your eyes, avoid head movement and try to keep your head in one position without moving. You can also press the Hegu point to reduce the symptoms of dizziness and vomiting.