i recently had stitches on my knee . the would seems to be healing nicely. no puss or fluid leakage and no fever or chills. however, a large area surrounding the wound has become red, itchy and warm to the touch and slighty swollen. i have been using triple antibiotic cream and covering it with a non-stick pad and gauze . i am wondering if this is just a rash or if it is a sign of infection.