question: In recent days, I have developed a rash on the region on my back directly below my brassiere.  Since I changed laundry detergents recently, and used a chlorine bleach as well...both of which I do not typically do, I wonder if I could be allergic to the chlorine bleach or detergent?  If so, what are the best over-the-counter remedies to use?  Should I try to dry it out (Ivy dry) or keep it moist (zinc oxide ointment)?