Hi Heide I'm a cancer survivor and at your age you could get IBC but it's not very common. what you describe could be anything, a bruise, sore lymph node, milk duct, cyst, inverted pimple, infection, since the redness and soreness isn't as bad, I wouldn't worry alot over it, but I would still get it checked out at the doctors office. Have you had mammograms in the past? They might want to do one just to be sure, possibly a breast ultrasound. How about under your arm, in the pit, there is a lymph node there, does it hurt? feel swollen? Sometimes the sites on the net really put the fear in you, dont' they? I would just see the doctor to ease your fears 100%, I wouldn't worry or lose sleep over it, IBC doesn't get better it spreads so the fact that it seems lighter and not as sore is a good thing.