The duration of heat stroke cannot be generalized, but is related to the severity of the disease, as follows: 1, if only mild heat stroke, only manifested as headache, dizziness or sweating a little more, the duration may be one or two hours, as long as you leave the environment, rest, drink more water, the symptoms can gradually ease; 2, if the body temperature has been very high, headache is very serious or the emergence of cerebral edema, the duration of Relatively long, probably within a few hours; 3, more serious is the emergence of coma, there are changes in consciousness, then there will be no headache, this situation lasts relatively longer. Therefore, the duration of heat stroke cannot be generalized, but depends on the severity of the patient’s condition and complications, some of which can be relieved in 1-2 hours, while others last for a very long time.