Headache symptoms after eating crabs will usually be relieved after two days. Crab is a cold food, when the human body after eating crabs lead to an increase in coldness in the body, it will induce the occurrence of migraine. It is recommended that patients with migraines should not eat crabs. In addition to eating crabs headache, can also be used to solve the method of dietary therapy. For example, patients can drink more ginger water, ginger water has the effect of cold. Ginger can be applied externally to the temples on both sides, repeated rubbing, will also play a role in relieving the effect of headache. In addition to eating crabs headache patients, plain can not eat spicy, stimulating food or drink alcohol, these will also induce headache.