Migraines suck

I have chronic migraines and take 500mg of Depakote twice a day. I get off schedule and yesterday after missing 2 doses in a row I ended up drunk (the alcohol hit me harder then I thought it would) and when I got home a few hours later and took my Depakote I felt fine. This morning I feel like I have a terrible migraine and Suffering from a hangover at the same time! I don’t have the time to go to the dr to stop the migraine. Does anyone have any suggestions on what I can do to get this to be manageable through my 10 hour work day???