Yeast rashes in the diaper area can feel stressful, especially when your baby is uncomfortable. But take a deep breath: yeast diaper rashes are common in babies, and they are not a sign that you did anything wrong. You are a good parent, and this is a normal baby-care issue that can be treated with the right steps.
A yeast diaper rash is often caused by an overgrowth of Candida, a type of yeast that can thrive in warm, moist areas like the diaper region. Unlike a regular irritation rash, a yeast rash may look very red, may show up in the skin folds, and may have small red bumps or “satellite” spots around the main rash.
First, Check In With Your Pediatrician
If you suspect a yeast rash, the best first step is to contact your pediatrician for a diagnosis. Other diaper-area rashes can look similar, and your pediatrician can help confirm whether yeast is the cause and recommend the right treatment.
Yeast diaper rashes usually need an antifungal treatment to fully clear, because barrier creams alone do not treat the yeast overgrowth. Your pediatrician may recommend an antifungal cream, ointment, or other treatment based on your baby’s rash and medical history.
What does a yeast rash look like?
Yeast rashes tend to look a little different than your typical diaper rash. You might notice:
- Bright red or deep pink skin
- Clear, defined edges
- Small red spots just outside the main rash area (often called “satellite spots”)
Why do babies get yeast infections?
Yeast naturally lives on our skin, but it loves warm, damp environments like diapers. Sometimes that yeast can grow out of balance and cause a rash.
Yeast rashes can happen even when you are changing diapers often, using good products, and doing everything “right.” Babies have sensitive skin, and the diaper area is naturally warm and moist, which can make yeast overgrowth more likely.
A few common triggers include:
- A recent round of antibiotics (for baby or breastfeeding parent)
- Lingering moisture in the diaper area
- Infrequent diaper changes or long overnight stretches
- A regular diaper rash that wasn’t able to fully heal
It’s not anything you did wrong—it just happens sometimes.
What this means for your cloth diapers
If you are cloth diapering, there are a few extra steps to keep in mind. Yeast can linger on fabric, so during treatment your goal is to prevent the same yeast from being reintroduced to your baby’s skin. If you keep using cloth diapers without fully killing the yeast, it can lead to reinfection.
During an active yeast infection, you will need to bleach sanitize the cloth diapers after every use until the rash is completely gone. In other words, each time you remove a cloth diaper during treatment, that diaper should be sanitized before it goes back on your baby.
You may choose to temporarily use disposable diapers while you treat the rash and sanitize your cloth diaper stash. If you continue using cloth, keep a strict routine: change promptly, wash and sanitize used diapers, and do not return untreated diapers to the rotation until the rash has cleared.
How to bleach sanitize reusable cloth diapers
- Begin with clean cloth diapers. Ensure that your diapers have been washed and rinsed thoroughly before sanitizing. Note that sanitizing is not a remedy for detergent build up.
- Dilute bleach in cold water. Use a bleach that is labeled as a disinfectant for effective sanitizing of your modern cloth diapers. Ensure that the bleach you choose is at least 5.25% sodium hypochlorite. You can find this information on the packaging.
- Soak the cloth diapers in your diluted bleach solution for at least 15 minutes, but no longer than one hour. Excessive soaking for long periods of time, such as overnight, is not necessary and may cause unnecessary wear on the lining or elastics of your diapers. Be sure that each diaper is fully submerged for best results.
- Rinse with warm water, followed by a warm wash cycle in your machine to remove any excess bleach. Sometimes bleach may irritate your baby's delicate skin—be sure to rinse all cloth diapers well to ensure that all of the bleach is removed.
- Dry as desired. We recommend air drying or tumbling dry on low or no heat.
Make sure you’re including everything that touched the rash including diapers, inserts, wipes, even wet bags if needed.
A real-life tip: it’s okay to take a break
Because bleach sanitizing after every single use can feel like a lot (because it is), many families choose to temporarily switch to disposables during treatment.
This can help:
- Cut down on constant bleach washing
- Give you one less thing to manage
- Lower the chances of reinfection while baby is healing
Yeast infections are frustrating, but they’re temporary—and with the right treatment and a little extra laundry care, they clear up. If you ever feel unsure, your pediatrician is a great resource, and we’re always here to help guide you through the cloth side of things.
Contact your pediatrician if the rash gets worse, does not improve with treatment, bleeds, oozes, causes significant discomfort, or is accompanied by a fever. You should also reach back out if you are unsure how long to continue antifungal treatment or how to safely use diaper creams with your cloth diapers.
Your baby’s comfort matters, and so does your peace of mind. When in doubt, ask your pediatrician, take the extra sanitation steps, and remember: this is common, treatable, and not your fault.
