OK, I just had tonsilitus, (sorry for spelling), in bed for a week at uni, as it was a bactierial infection i was given antibiotics, penecillin to be exact.
I'm still on them, and this is few side affects I have found (it was my birthday on sunday so I kinda had to :P).
You get drunk a lot more quickly, it affects your system so if you do drink be careful.
Alcohol can dehydrate you very quickly, this I assume can affect recovery rate, keep fluids up. A pint or two of water before bed, and one there for the night and morning after.
The general advice is to rest, you have been given these for a reason, rest and relaxation is the best thing, your ill, antibiotics tend to work quickly, but they aren't a miracle cure, you have to rest more to help them work.