If the fever has gone and the discharge lessened I imagine that the antibiotic treatment is working - and quickly too. You went to hospital Friday evening which is only two days ago. Personally, and unless your condition begins to deteriorate, I would leave it for another week and see how you are then before troubling your GP again.
Ouch! Sounds very unpleasant. Is the discharge still lessening? Of course do go to your doctor is you are worried, but I think you need to give it a few more days or so for the antibiotic to do its job.
Apart from this problem, I hope all is well with you.
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