Can a peanut allergy cause diaper rash in babies?

A peanut allergy can develop at a very young age, and one of the symptoms of a peanut allergy can be a rash or hives. However, food allergies rarely cause a rash on a baby’s bottom (and it’s also not uncommon for babies to swallow foods that have peanuts or peanut derivatives in them). Generally, diaper rash occurs due to friction or irritation. If your baby sits in a wet diaper and the diaper rubs his underside, he will develop a shiny red diaper rash. In addition, sitting in urine or feces can be irritating — due to the acid content in the waste. Sometimes, a rash on a baby’s back is caused by a yeast or fungal infection, especially if the baby is taking antibiotics. This rash is usually raised and uneven; they are usually centered on the genitals.

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Food allergies can cause a red rash around the baby’s anus. But a baby’s bottom is more likely to have an allergic reaction on contact than through food. Baby wipes, diapers, detergents, soaps, lotions, and plastic pants can all cause allergic rashes. When babies start eating solid foods, the introduction of new foods can increase the frequency of diaper rash. Changes brought about by new foods in their stools can irritate their bottoms; plus, they may start to leave more often. The same effect can be caused by changes in the diet of nursing mothers.

The key to preventing diaper rash is to keep your baby’s bottom clean and dry. Applying diaper rash cream every time you change your baby’s diaper can help prevent rashes later in life. If you notice a rash that doesn’t go away or appears after your baby eats certain foods, check with your doctor. He or she can test to see if your baby has a food allergy, contact allergy or some type of infection that requires steroid or antibiotic treatment.

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