Is shower mold causing allergies and how to remove?« Back to Previous Page

We've lived here for 2 years and just noticed a bunch of black spots growing in the grout between the tiles in our master bathroom shower. It’s definitely gotten worse since the humidity kicked in last month. Lately, my husband has been waking up with a stuffy nose and itchy eyes, and I'm worried the mold is causing it. What's the best way to get rid of this for good and is it safe to handle ourselves, or should we call a professional?
Posted by Karan Patel
Asked on April 12, 2026 1:30 pm
That black grout mold is very likely contributing to your husband's symptoms, as it releases spores that irritate the eyes, nose, and throat, especially in a confined space like a shower. The recent spike in Dubai's humidity provides the perfect damp environment for it to flourish.

For a small, surface-level patch, you can handle it yourself. Wear a mask and gloves. Scrub the area with a stiff brush and a paste of baking soda and water, or a dedicated grout cleaner. For stubborn growth, a diluted vinegar solution (one part vinegar to one part water) can be effective. The key is to dry the shower completely after each use; run the bathroom exhaust fan for at least 30 minutes and squeegee the walls.

If the mold returns quickly, has a musty odor, covers a large area (more than one square meter), or if you see discoloration on nearby drywall or ceilings, the issue is likely behind the tiles. In this case, DIY cleaning only addresses the surface and a professional inspection is needed to find and resolve the hidden moisture source, which is common in buildings here due to condensation from year-round AC use. They can also perform tests to identify the mold type, which is important for determining the correct remediation method.
Posted by Sani Admin
Answered on April 12, 2026 11:51 pm