For a small, visible patch (under one square foot), you can carefully clean it yourself with a vinegar solution. However, given its location behind furniture—suggesting potential hidden growth in the wall—and the fact that it’s in your children’s room, a professional inspection is strongly advised. They use moisture meters and thermal cameras to identify the full extent of the problem, which is often much larger than what’s visible.

The urgency stems from the ongoing health exposure and the risk of structural damage. In the UAE’s climate, the constant use of AC can spread mold spores from one room throughout the entire HVAC system. A professional assessment will identify the species and the source of the moisture, which is critical for a permanent solution, not just a surface clean. For health and safety, especially with children involved, verifying the full scope with a science-driven inspection is the most prudent course of action.