I was diagnosed with a staph infection 3 days ago, I have been taking 2000mg of keflex daily, but it doesnt seem to be getting better, I do have a sore that has finally today started to drain but the redness surrounding it is larger than my hand, the inner "hard" lump is about 4 inches long and an inch wide, it hurts horribly, I did contact the original dr. that I saw and basically he said to continue with antibiotic, hot compresses and epsom salt, it just seems to be getting worse.