People with headaches from heatstroke, if the symptoms are not very strong, you can first drink more water to replenish the water, you can also add some salt inside the water or oral rehydration salt to replenish the electrolytes in the body and correct the electrolyte balance in the body. You can also take Chinese medicine, commonly used is Huo Xiang Zheng Qi Shui or ten drops of water, both have the effect of relieving the surface, dispelling heat and dampness, which is very helpful in relieving the headache caused by heat stroke. But if the headache is strong, after the above treatment is not relieved, and accompanied by fever, you can eat antipyretic and analgesic drugs, such as acetaminophen, ibuprofen, both have the effect of reducing headache and reducing fever. If the headache is accompanied by vomiting and you cannot drink water or take medicine, in this case it is recommended to go to the hospital for intravenous antipyretics, intravenous saline and electrolytes to replenish water and electrolytes.