Is bathroom mold causing my kids' cough and runny nose?« Back to Previous Page

It is very possible. Mold growing in humid, poorly ventilated bathrooms is a common trigger for respiratory issues like persistent coughs and runny noses, especially in children. The type of black mold commonly found on bathroom sealant is often Cladosporium or Aspergillus, which are known allergens. In the Dubai climate, with its high humidity and constant AC use that recirculates air, these spores can spread from the bathroom to living areas, exacerbating symptoms.

For a small, visible patch, you can clean it yourself. Wear an N95 mask and gloves. A solution of white vinegar or a dedicated bathroom mold remover applied with a stiff brush can be effective. However, if the mold is growing underneath the silicone sealant, as you described, surface cleaning is insufficient. The mold has penetrated the material, and the sealant will likely need to be completely removed and replaced to properly address the root of the problem. This is a common issue in windowless bathrooms where the exhaust fan alone cannot remove all moisture.

To manage this going forward, run the exhaust fan for at least 30 minutes after every shower and wipe down wet surfaces to reduce condensation. Consider a small dehumidifier for the room. If your children's symptoms persist even after you've addressed the visible mold, or if the affected area is large, a professional inspection is recommended. They can identify the exact species and check for hidden growth in walls or under flooring, which is not uncommon when a leak is present. A company with its own microbiology lab can provide a culture to confirm if the mold type is a potential allergen source for your family.