If you have a headache the day after drinking alcohol, there are several ways to relieve it: 1. You can take wake-up promoters, such as multivitamins or amino acids, which are commonly used in clinical practice. 2. You can eat foods that protect the mucous membrane of the gastrointestinal tract and prevent further absorption of alcohol, including green, fresh vegetables, such as celery, spinach, lettuce, oleander, etc. You can also eat fresh fruits, including apples, pears, peaches or other fruits with high water content. 3. You can also eat fresh fruits, including apples, pears, peaches or other fruits with more water.3. You can take Chinese herbs, such as Pueraria Mirifica and Semen Cassia, which have the effect of relieving alcohol.4. You can apply traditional physical therapy methods to relieve headaches, such as acupuncture treatment, moxibustion treatment, etc.