Dear tastytootsie: There are multiple possible explanations for itchy skin. The skin on your breast is just like the skin anywhere else and is subject to a multitude of skin problems. If the breast is not swollen, red, hot to touch, and there is no sore, or scaling of the skin and there is no lump, it may be more likely to be some kind of allergy or dermatitis, although without an examination, it is impossible for us to speculate. Have you recently changed detergents, soap, fabric softener, for example? If this persists or you are concerned, you might consider having it checked by your doctor, who can make recommendations based on an examination.
sometimes bras can cause this especially if there is a seam that runs thru the center........