Dizziness and nausea in the summer are most often symptoms of heat stroke, which affects the central nervous system, resulting in dizziness, headache, nausea, vomiting and other symptoms. These are the early symptoms of heatstroke, or mild heatstroke, if there is a low-grade fever or body temperature reaches 38 degrees, it is clear that heatstroke. This situation should immediately go to some ventilation and cool environment, preferably air-conditioned room, can help dissipate heat. In addition is to replenish more water, drink more water or drink some saline, you can also use oral rehydration salts to drink water, so as to correct the body’s water electrolyte balance. In addition, you can also drink cool drinks, such as watermelon juice, green bean soup, etc., you can also take some Chinese medicine, such as patchouli Zhengqi water, ten drops of water and other medicines, are able to have the effect of relieving the surface of dampness and heatstroke. In addition to heatstroke, dizziness and nausea in summer, should also consider other factors, such as excessive fatigue, hypoglycemia, hypotension, cerebral blood supply insufficiency, Ménière’s disease, otoliths, the elderly should also consider the possibility of acute cerebrovascular disease, to the hospital for further clarification of the examination and treatment.