Our oldest had very sensitive skin and although it didn't happen often ~ usually when my Mom watched her-lol. I was a first time Mom and freaked out ~ a friend told me to try something her Mom told her about and worked every time for her. So I tried it and to this day swear by it but your going to shake your head when I tell you....burnt flour. Flour like you find in your pantry to bake with. Take a baking pan and put some in the pan over the stove burner~ shaking it back and forth so it doesn't burn but turns brown. Once it cools down fill the diaper up and the theory is that it pulls the acid and red out of the rash. Don't know who thought of it but it worked for me! I've tried it on one of my daycare kids and now the Mom has a container like I did of burnt flour!!