Suggest Treatment For Recurring Episodes Of Cellulitis

I have had 2 episodes of cellulites and have now got it again. I had a split on the heel which I presume was were the infection got in. I am seeing my GPS tomorrow because on the first occasion I ended up in hospital on intravenous antibiotics and was in agony for days before the anti b started to work. I feel I need strong antibiotics what should I ask for. David