What should I do if my baby has diarrhea and redness around the anus?

Jun 02, 2022 Source: Cainiu Health
Dr. Xie Zixing
Introduction
Solutions for diaper rash (redness around the anus) in babies with diarrhea: First, address the diarrhea itself. Treating only the redness around the anus or buttocks—without resolving the underlying diarrhea—will make it difficult to achieve a complete cure. Therefore, identify and treat the cause of the diarrhea first—whether it’s due to indigestion or infectious enteritis—and manage the diarrhea accordingly. Second, ensure the skin around the anus and buttocks is adequately exposed to air.

A baby’s intestines are relatively delicate, making diarrhea a common occurrence—sometimes accompanied by redness around the anus. So, what should you do when your baby develops diarrhea with perianal redness?

How to Manage Diarrhea and Perianal Redness in Babies

The first step is to address the diarrhea itself. Treating only the redness or irritation around the anus or buttocks—without resolving the underlying diarrhea—will rarely lead to complete recovery. Therefore, identifying and treating the cause of diarrhea (e.g., indigestion or infectious enteritis) is essential. Second, ensure the skin around the anus and buttocks remains well-exposed to air and stays dry; this promotes rapid healing. If needed, a small amount of erythromycin ointment may be applied locally.

After diarrhea, mild redness and swelling often appear around the anus—partly due to irritants present in stool. For babies wearing diapers, residual urine can further irritate the skin, leading to diaper rash. Thus, after each bowel movement, gently but thoroughly cleanse the area and pat it dry. Minimize diaper use whenever possible and keep the area as dry and ventilated as possible to facilitate resolution of redness and swelling.

Additionally, always clean the anal area carefully after each bowel movement to maintain local skin hygiene. You may apply a small amount of calamine or talcum powder, and dress your baby in loose, breathable clothing. We hope this information proves helpful.

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