Diaper Rash That Won't Go Away

Your baby has a diaper rash and you’ve tried all the conventional treatments but it still won’t go away.  What should you do?  If your baby has a diaper rash that doesn’t go away after a week with conventional treatments, you may need to call your pediatrician.  Likewise, if your baby has a fever, diarrhea or illness, or if the rash has spread to other parts of his body you should make an appointment with your pediatrician.

Causes of persistent diaper rash

  • simple irritation (from sitting in urine or stools too long, or sensitivity to the urine or stools)
  • food sensitivities
  • yeast infection
  • bacterial infection (like staph or strep)
  • sensitivity to baby wipes
  • colon bacteria imbalance
  • cloth diaper sensitivities (to detergents or materials in cloth diapers)

For a persistent diaper rash you need to get to the bottom of what is causing the rash.  It may take some time or experimenting to determine what is causing your baby’s diaper rash.  However, because a diaper rash can be caused by a yeast or bacterial infection or other conditions, you should get your doctor to take a look at the rash if it has persisted for longer than a week. 

Diaper rashes caused by an infection

A yeast infection rash looks different than an ordinary diaper rash.  It is extremely red and you’ll see little raised bumps on the edges of the rash.  As the rash spreads, you may see red “satellite” legions that look like red pimples and are further away from the main rash.  A distinguishing characteristic of yeast rashes is that they are often seen in the folds and creases of the skin around the groin area.

If your baby has a bacterial infection you may see yellow bumps that may be filled with “puss” or you may notice crusty areas on your baby’s bottom.  This is a sign of an infection that may require antibiotic treatment.

Other causes of persistent diaper rashes

Ammonia Dermatitis and feces breakdown:  Sometimes  a baby’s rash is caused simply by not keeping him dry enough.  Some babies are sensitive to the ammonia that develops as their urine breaks down.  This condition is known as ammonia dermatitis.  Additionally, when urine turns into ammonia it creates a more alkaline environment.  This can be problematic if your baby sits in urine and feces for too long.  Enzymes found in feces cause the skin to break down.  Since these enzymes thrive in an alkaline environment, a baby sitting in both urine and feces is more prone to skin break down.  Changing your baby’s diaper frequently and controlling the pH level of your baby’s skin will help to clear up and prevent a diaper rash.

PH balance:  Normally the pH of your baby’s skin is neutral to slightly acidic.  Breastfed babies tend to have slightly acidic stools.  Whereas formula fed babies’ stools tend to be slightly alkaline.  This is one reason why formula fed babies are more prone to diaper rash.  To improve the pH balance of your baby’s skin, try rinsing his bottom with a water and vinegar mixture.  The vinegar will help to restore the proper pH balance of his skin.  If your baby is using cloth diapers you can add a 1/4 to 1/2 cup of vinegar to your final rinse cycle when you wash his diapers to help as well.

Sensitivity to baby wipes:  Some babies are very sensitive to the chemicals in baby wipes.  You may be able to switch to wipes designed for sensitive skin, but if your baby is having problems with a persistent diaper rash, you should avoid wipes altogether until the rash clears up.  You can just use a wash cloth with warm water to wipe with.

Digestive issues, food sensitivities, and colon health:  Anything that alters the pH level of your baby’s urine or feces can cause diaper rash.  Certain foods may cause your baby’s urine or stools to be more acidic or alkaline.  An imbalance in either direction can be a problem.  Acidic stools may cause a chemical burn-like rash; alkaline stools will cause the enzymes in feces to flourish, leading to skin break down.

If your baby has a food sensitivity, dairy is the likely culprit.  It is one of the most common food sensitivities in babies.  Babies that are sensitive to dairy may have green stools, mucus stools, or stools with blood in them.  Naturally, these poorly digested stools can cause problems with skin break down and diaper rash.  If your baby has started on solid foods, he may have issues tolerating some of the acidic foods as well.  Foods like citrus fruits, apples, cherries, pears, prunes, peaches, strawberries and tomatoes are more acidic.  If your baby’s rash appears shortly after starting solids, you may want to eliminate the acidic foods to see if the rash goes away.  Your baby just may be more sensitive to these foods.

No votes yet


Sign in to leave a comment!


From the Message Boards

Breastfeeding Past One Year

Celebrating 1 year of breastfeeding!

Yesterday was my sons 1st birthday and we are still going strong breastfeeding! I plan to continue f...

Formula Feeding

formula brand question

Brodee is on formula and has been since day 1...he is very fussy and screams like he is in pain and...

Formula Feeding

switching from breastmilk to formula newbie questions!

Hello everyone, newbie here! This is my first post! After 7 weeks exclusive pumping ive decided to...

Formula Feeding

Bottle feeding

Hey everyone, I'm currently 23 weeks 3 days pregnant with my little boy :) & I just wanted to que...

Formula Feeding

Is it normal for a 5 day old to eat 5 oz of formula?

My daughter is 5 days old and sometimes she eats 4 1/2 to 5 1/2 oz in one sitting. I went to her ped...

» Check out the friendliest message board for moms and moms-to-be!