Bad smelling/tasting burps fallowed by stomach pain and nausea?

I ate chilli last night (meat less) and before i went to bed i had these disgusting foul tasting and smelling burps (like egg) then i went to bed and woke up at 4 AM to find myself ready to puke (nausea) and stomach pain.. i did not get sick though... i still have these disgusting egg burps and stomach pain.. how can i get rid of this by tonight, because i have a date?..