So about a month or so ago I scraped my knee. Resulted on a few significantly shallow scratches. I washed them with antiseptic soap and went about my day. I noticed that the wound was taking a long time to heal I'm talking weeks here. Infact it was widening it, would itch burn and become irritated. It wasn't until I noticed a few pimples growing out it which were full of pus that I went to see a doctor. Got antibiotics and a cream. The healing sped up and now all that's left is slightly dark skin. I noticed that a pimple would grow on the site, quickly fill with pass then either flatten like the pus got reabsorbed or burst and a day later boom another. What is going on???