I'm very allergic to them. To the point of developing blood blisters.
After my belt lipectomy, I got 2 blisters so bad, they were over an inch in diameter and well, scarred some. This latest surgery, I only got 3 small ones on my arms, none on the breasts so far (fingers crossed, I have to keep those tapes on for another week). The doctor had me remove the ones on my arms though, as they were causing me such problems. I put vitamin E oil (or pure ointment) on the incision line, and sometimes use an anti-itch cream around the area, being careful not to get that on the incision itself. I'd take an antihistamine too, but not while I'm on antibiotics and pain pills.
Be careful not to scratch close to your incisions of course, but sometimes just lightly rubbing the area, or scratching about an inch away from it, helps a lot!
Hope you feel better soon....and congrats on your surgery!