According to a one week poll on self-treatment for alcohol hangover headaches: 1) Drinking plenty of fluids was the top recommendation to treat dehydration from alcohol. 2) Taking aspirin was discouraged due to the risk of stomach bleeding as aspirin is an irritant. 3) Taking Tylenol was strongly contraindicated due to the risk of liver toxicity when combined with alcohol. The doctor encouraged further researching natural remedies instead.