I think my 3 month old DD may have a dairy allergy...she tends to get a red rash along her butt crack that I thought was diaper rash but then I read that it maybe a sign of an allergy. If it is a sign of an allergy, would diaper rash cream clear it up? I put Burt's Bees diaper rash cream on it and it always clears it right up, but the Burt's Bees doesn't clear up a different rash she has on her butt cheeks (that's the one that I think is related to a dairy allergy).