Last week while writing a letter the portion in between my breasts started to itch and sting and now, extremeliny fluid filled lumps grew at the exact same spot. The skin is reddish and the bumps are starting to spread to the sides of my body, but only where covered by my bra at the side. The first portion that had this problem is not covered by bra so it could not be contact itch. The bumps give me sudden stinging pain sometimes.