Black mold causing cough: DIY clean or call professional?« Back to Previous Page

Black mold in bathrooms is a common issue in Dubai due to the high humidity and condensation from showers, and it can definitely cause the coughing you're describing in children. The first step is to identify the source of the moisture, which is often a leaky pipe behind the wall, failed grout sealing, or inadequate ventilation.

For a small, surface-level patch (less than one square foot), a thorough DIY clean can be effective. Use a dedicated mold remover or a vinegar solution, not bleach. Bleach only removes surface discoloration and doesn't kill the roots, so the mold will often return. Scrub the area, ensure it is completely dry, and run the bathroom exhaust fan for at least 30 minutes after every shower to control humidity.

However, given that the mold is spreading behind the toilet and up the wall, this suggests a persistent moisture issue that a surface clean won't fix. The mold growth you can see is often just the tip of the iceberg; there may be more extensive colonization within the wall cavity. For your children's health and to properly resolve the problem, a professional assessment is recommended. They use moisture meters and borescopes to find the hidden source and can perform air or surface sampling to identify the mold species, which determines the appropriate remediation protocol. In many cases, the wall may need to be opened, the affected material removed, and the area properly dried and sealed to prevent recurrence.