The discomfort of a headache in a car may be due to suffocating air or the presence of symptoms of motion sickness, which can be relieved by opening the windows, taking motion sickness drugs or drinking water. 1, open the windows to ventilate: the car is a confined and narrow space, the air does not circulate, coupled with the shaking of the car, a long time in the car will cause headache symptoms, more windows to ventilate, more fresh air, can relieve headache symptoms; 2, take motion sickness drugs: sitting in a car When you have a headache, you can take motion sickness medicine to relieve the headache, usually half an hour in advance of the effect of motion sickness medicine, but the drug will generally cause weakness, sleepiness and other symptoms; 3, drink water: before the car can prepare a bottle of water, you can also prepare the right amount of fruit, such as oranges, oranges and other fragrant fruit, when the headache, a proper sip of water or eat some oranges, oranges, can be a good distraction, to soothe the headache. If the headache is severe and cannot be relieved after a long rest, it may not be caused by simple motion sickness, so it is recommended to seek medical help to clarify the specific cause.