Rash/Hives After Breast Augmentation? (photo)

My BA was 8/5/13. I got silicone under the muscle, under the breast incisions with dissolvable stitches. At week 2, my PS removed the original white steri-strips and placed a beige tape over the incisions. I am at about week 3 now and have developed a rash, first where the tapes were and now it is spreading. My PS told me I am having an allergic reaction with hyperpigmentation. The reddened areas of my skin are extremely sensitive to touch and movement and feel very tight.