Could small closet mold cause our persistent dry cough?« Back to Previous Page

Yes, a small patch of mold in a closet can absolutely be the source of your persistent dry coughs. The visible mold is often just the tip of the iceberg; the actual colony and its spores can be spreading inside the wall cavity, especially after a moisture event like the recent heavy rains. In Dubai's climate, exterior walls are prone to condensation issues where the hot, humid air meets the cooled interior surfaces from constant AC use, creating a perfect hidden environment for mold growth.

The cough is a common reaction to inhaling mold spores and microbial volatile organic compounds (mVOCs), which are irritants. Given that the symptoms started around the same time as the rain and are localized to you both in the home, the correlation is strong. You should treat this seriously.

Your first step is to identify the moisture source. For a closet on an outside wall, the most likely culprits are a hidden leak from the roof or window frame during the rain or condensation within the wall. Do not attempt to clean it with bleach, as this can aerosolize the spores and worsen your exposure.

For a situation like this, a professional inspection is highly recommended. They use moisture meters and thermal imaging cameras to find the extent of the hidden moisture and mold growth without unnecessary demolition. The only way to confirm the type of mold is through lab analysis of a sample, which can identify if the species present are known to produce more significant irritants or toxins.

Until it is assessed, keep the closet door closed and consider using a dehumidifier in the bedroom to help lower the overall humidity level, making the environment less hospitable for further growth. Resolving this requires fixing the moisture intrusion first, then performing the remediation.