When the weather is hot, I feel my blood on my head. But my head is sweating. Makes people feel uncomfortable. What happened?

When the weather is hot, the blood vessels in the brain will expand. If you are neurotic, you may feel dizzy and bloating. I suggest you pay attention to heatstroke prevention and take some medicine, such as Huoxiang Zhengqi. You should go to the hospital for examination and take medicine under the guidance of a doctor.