hello - i have what seems like a rash broken out in my pelvic area, but it has been slowly spreading to my cheat, back, neck and back of legs. it doesnt itch, but looks like bug bites. I have taken allergy medication and also used cortizone. Two of my sons have it in there pelvic area, but hasnt spread. But my husband and thrid son dont have anything - so I am ruling out laundry detergent, etc. Any ideas?