One of my babies was very fair and got terrible diaper rash. I took off her diaper and placed her on a padded mat. A diaper holds in the fumes, so I felt the open air would be better. It was.
i ment to put 8 parts water to 1part vinegar
i looked in my baby book and found some more things to try put 8 parts to 1 part water wipe your babys bottom with his solution baking soda 3 times a day 2 tablespoons to warm water try putting yur baby in a bigger size diaper until the rash is gone get a cotton ball and put maalox on it and dab your babys bottom i hope this helps good luck:)
im so sorry for your baby try this ointment called corona ( like the beer) it worked when my son had a really bad rash have you tried oatmeal bath?
What I don't understand is why the doctors are so complacent about the diarrhea. Persistent diarrhea can kill a baby. Get rid of that condition and the other should disappear. If the diarrhea does not stop soon, take him to the ER.