Dizziness and nausea after heat stroke can be relieved by getting out of the hot environment, heat dissipation, and other ways. 1. Get out of the hot environment: quickly leave the hot scene and move to a ventilated, cool place, such as a corridor or the shade of a tree. 2. Dissipate heat: Undo the collar of your shirt and remove or loosen your jacket. If your clothes are soaked with sweat, replace them with dry ones and turn on the fan or air conditioner as soon as possible (avoid direct wind) to dissipate the heat. Apply cold compresses to the head, armpits and groin with wet towels and cooling pads. Warm water can be used to wipe the whole body to accelerate blood circulation and promote heat dissipation. 3. Other ways: After cooling conscious patients can use green bean soup, light salt water, etc. to relieve heatstroke. If there is a high fever, coma, convulsions and other symptoms, the patient should be allowed to lie on his side, to keep the airway open, and at the same time to call the emergency telephone, help medical personnel.