I have a staph infection in my arm from eczema. I have had it on and off for a few weeks, previously took a 10 day course of flucoxacillin and it went away mostly, but then came back after a couple of weeks. I have now been taking a second course of them for 2 days (will be on 10 days total). They dont seem to be working so far, my eczema is crusting over (looks yellow) and the big pimples/boils I have from the staph infection are still there. Some feel less full of puss than before, some of them still have pus in them. My arm is still a little swollen and red, and quite sore. Should I be concerned, or will it take longer for the flucoxacillin to work?