Staph Infection on Body. Doctor soon?

I have been getting heat boils, which are most likely an outcome of staph infection, but that's my prediction from what I've read and understood from people around me. The boils have been occurring continuously in different parts of both the thighs. But this one that's particularly on my knee has made it very, very difficult for me to even function normally. Generally these boils will go away with the pus bursting out, but this one boil on the knee hasn't shown signs of going away despite the pus bursting out twice. I must also mention that these areas are always at a very, very high temperature and reddened. The hotness is scary, honestly. I've shown this to my family doctor and he prescribed me some antibiotics, a cream and a bathing soap. I have finished the three days course of the meds but there hasn't been any significant difference. Is this something dangerous? Should I be consulting a specialist or another doctor soon?