Exercise and B vitamins can help cure a hangover, but coffee won't help.These are among the tips that Loyola University Health System family physician Dr. Aaron Michelfelder offers to avoid the misery of a New Year's hangover.Before the party:-- Plan to drink moderately -- a maximum of five drinks for men and three drinks for women during a minimum three-hour period.-- To prevent inflammation, take an anti-inflammatory drug such as ibuprofen or Aleve.During the party:-- Eat first, and then drink, not the other way around. Food slows the absorption of alcohol.-- Drink slowly.-- To prevent dehydration, drink a glass of water after each alcoholic drink.-- Take a B vitamin supplement.After the party:-- Do not drink and drive.-- Get as much sleep as possible.The morning after:-- Take another B...