When you have had a long night of drinking and wake up with a massive hangover and feel like crap the only cure is to have a drink of whatever kicked your ass the night before.
According to Bryan the remedy to any hangover is basically to drink whatever caused the hangover in the first place. If, for example, a person spent the night doing tequila shots then the only way to feel any better is to have a tequila shot when you wake up in the morning. Bryan swears by this remedy and says it has worked for him several times in the past.
The first time he learned about this hangover cure was shortly after he started drinking. His first hangover was pretty rough and his older brother told him to drink whatever he had the night before. Bryan says that he did not feel better immediately but after a few hours he started to feel better. On subsequent experiences with the remedy he says he began feeling better sooner and sooner.
I have encountered many hangover remedies including: hot toddy, bloody Mary, tap water, hamburgers. Bryan has tried almost all of these and has had the most success with drinking whatever he had the night before. The only pitfall he admitted to running into using this remedy is when he drinks so much that he has no idea what he actually drank the night before. In these cases he says that it just does not work. He believes himself to be a bad guesser and when he has to guess what he drank the night before because he forgot he says he usually gets it wrong and the remedy does not work.
I think the remedy works on a psychological level in that it makes one feel better about the chances of getting over a hangover more quickly. On a physical level, I am not so sure it provides anything beneficial to an already injured body. That does not mean that it is not effective. An illness is more than physical. Although modern western medicine treats every illness with some sort of cure to the body, the mind itself also contributes to wellness and recovery from illness. If more benefit can be gained from being in a better psychological state of mind as opposed to being more hydrated or medicated then it might be better to think drinking the cause of your hangover for breakfast will cure you.