Two weeks post chin augmenation my chin looked fantastic. Now I'm worried about infection. Any suggestions? (photo)

I'm three weeks post chin augmentation surgery and I'm worried there may be an infection. I looked great two weeks post op, but woke up three weeks post op to a swollen face and pain. I've been on antibiotics (second course now) and have been advised to take prednisolone 10mg for three days. I've uploaded pictures of my incision at two weeks, and now at three weeks. I have no fever, warmth or other signs of infection besides redness and some tenderness at times.