" Hair of the dog that bit one" is an age-old expression that refers to the act of drinking alcohol to alleviate the symptoms of a hangover. However, there are several other words and phrases that can be used as synonyms for this saying. One of them is "cure that ails you," which implies that the remedy that caused the problem in the first place is also the solution. Another term that people commonly use is "wake-up call," which suggests that a small amount of what made you sick will bring you back to life. Other words and phrases that are commonly used as alternatives include "remedy," "balm," and "pick-me-up".