Depending on the severity of the rash here are a few things you can do to get rid of it. If it's really bad with blisters and bleeding, then letting him or her go diaperless a couple times a day until you see a change for the better. And when their diaperless still have an ointment on their bottom. I would set my daughter on a water proof blanket while she was diaperless. Another thing that soothes their bottoms is a nice warm bath. Some ointments that I've used and had some great results are "butt paste", "Desitin", & "A&D". The one I've had the best result from is Desitin. I use butt paste for the minor rashes, and switch out Desitin and A&D for the major rashes. When I do put some on their bottoms I really put it on thick. You should see changes within the hour. Eventually it does go away, but tends to come back from time to time. When I noticed that my daughter was getting rashes on a regular basis I started putting ointment on her bottom before she went to bed. Because that is when they sit in it for the longest amount of time.
Hope this helps, and if you have any more questions don't hesitate to ask me. I've been through everything when it comes to diaper rashes!
Oh....one last thing. Don't use wipes use wet paper towels or cloths until the diaper rash is gone. The wipes tend to irritate the rash.
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