I m 68 and healthy, but have developed an itchy red rash that spreads over my chest above my breasts for a few days, and has spread to my underarms, where my bra hits the skin I d know if it was fungus as I raised boys, and it isn t; it s pink and flat and looks like a convention of amoeba are sitting on my chest and front torso. It gets increasingly itchy and redder through the day, and then starts all over again the following morning. Benedryl knocks me out. Is there anything topical I can try? 1% cortisone, Desityn, CeraVe lotion are not helping. Any ideas?