For a small patch (under one square foot), you can handle it yourself with proper precautions. Wear an N95 mask, gloves, and safety glasses. Mix a solution of one part white vinegar to four parts water, or a teaspoon of baking soda in a spray bottle of water. Lightly spray the area, let it sit for 15 minutes, then scrub with a stiff brush. Wipe clean with a damp cloth and ensure the area is thoroughly dried. Dispose of any moldy porous materials like cardboard boxes or fabrics.

However, if the mold has penetrated the drywall or plaster, or if the patch is larger, DIY cleaning will likely only address the surface. The root cause is the moisture, and in Dubai’s climate, this often requires identifying and rectifying a condensation issue, perhaps from an AC unit’s cold surface meeting humid air, or residual dampness in the walls from the rains.

Given the location in a bedroom and the accompanying health symptoms, a professional inspection is strongly recommended. They can use moisture meters and thermal imaging to find the hidden source of the dampness and take air samples to identify the mold species, which determines the appropriate remediation protocol. This is crucial for ensuring it doesn’t return, which is a high risk if the underlying moisture problem isn’t solved.