When DD1 was a newborn baby, her new skin was very sensitive to scented soaps. After breaking out several times with an angry red rash, I brought her to the doctor and found out she was allergic to my laundry detergent. I gave away the detergent I had, and bought Tide Free. It did the trick! I used it up until just recently- she's outgrown the allergy.
I used this sketch for this layout: http://pinterest.com/pin/112308584430033736/