Hello,
There could be several reasons for a recurrent perianal rash. Since it keeps recurring, applying zinc oxide cream alone is likely providing only temporary relief without addressing the underlying cause.
As your child has a cow’s milk protein allergy and is on soy-based feeds, please note that a small percentage of children can also have cross-reactivity to soy. If your paediatrician has advised complete avoidance of cow’s milk protein, ensure that all dairy-containing foods, including biscuits and other processed foods with hidden milk ingredients, are avoided.
If there is also a suspicion of gluten sensitivity or celiac disease, follow a strict gluten-free diet only if advised by your treating doctor, as starting a gluten-free diet before evaluation can affect diagnostic testing.
Other possible causes of recurrent perianal rash include dermatitis, pinworm (worm) infestation causing perianal itching, bacterial infection, or other gastrointestinal conditions.
I would recommend consulting your paediatrician while the rash is present so that it can be examined directly. This will help identify the exact cause and guide appropriate treatment rather than relying only on barrier creams for temporary relief.
Answered2026-07-04 14:01:26
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