Is my body rejecting absorbing stitches? I've been on antibiotics for a week. Should it be calming down if was an infection?

Breast reduction surgery 5 weeks ago. Have small pencil eraser sized hole at the bottom of the "anchor" at the joining point. Doing wet to dry bandage for that. HOW EVER I'm on antibiotics for an "infection" on my left breast. The incision (closest to my arm pit at bottom anchor) is warm to the touch, and looks like a sunburn shade of red. Same breast as the "hole".