Go eat dim sum!!! All that greasy dim sum: har gow, shiew mai, daikon pancakes, char su buns, congee, dumpling soup stuffed with pork and shark fin. Washed down with lots of really strong tea. What has worked for me as a preventative is to take 2 Tb of olive oil before I go out to eat and drink. On my bday I went out to eat korean bbq and then afterwards went to drink martinis. I was not hungover the day after...