I've been using them since my baby was 3 weeks old, because she would get really bad diaper rashes and no creams or anything else would work. (babycenter.com)
It is extremely difficult to get out of the cloth and makes them not absorb which will give your baby an even worse diaper rash than you started with. (thefashionablehousewife.com)
Someone else told me they knew a child with bad diaper rash due to milk sensitivity. (thirstiesbaby.com)