Did he give you a diagnosis to take all of these meds? That's a LOT of antibiotics. Did he do any testing? If you don't know what the diagnosis is, call and ask. There has to be a reason why he is giving you 4 different antibiotics to take at the same time.
I can't imagine what he thinks they are with those meds, and I don't know what the bumps look like - are they white, red, oozing, etc?
Did he tell you not to drink alcohol while taking metrogyl? That's VERY important. It can make you very sick.
You may also end up with a fugal infection after taking all these antibiotics. You might want to start taking a probiotic, like acidophilus, to help prevent that.