I have a red/pink round spot on my breast and a pink streak that goes towards my nipple. There is a pimple in the center of the spot that looks like an insect bite. This all appeared last sunday after being at a barbeque sat night. Started having an itch on the side of my breast where the underwire of my bra hits the breast. I went to the doctor on monday and was prescribed antibiotics and topical cream. Doctor insists that this is only an insect bite. Have now been on antibiotics since monday night but haven't seen any significant improvements. However, in the morning, the spot is always much lighter and then gets a little redder during the course of the day. I am a lot of scared after reading articles of IBC. Should note there are no other symptoms - no itching, no swelling, no pain, no tenderness.