Lump has gone NOW WHAT?

Long story short I had lump then the doc put me on antibiotic for 5 days the lump has gone I felt better until today I feel little ill again why? I feel my legs are hot a little bet and my back also anyone experienced this? What it could be? Any idea?

Where was the lump ? What were you using are you still using what ever it is/was that you were using ??. Go back to your doctor.