Mold exposure is a rapidly growing issue in Arizona homes. Many don’t believe this state has a mold issue because of the dry desert climate. However,  Arizonans tend to run air conditioning nearly year-round, which creates condensation on coils and in ductwork, and many valley homes have aging HVAC systems that are rarely inspected for mold growth.

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Additionally, monsoon season brings a sudden influx of humidity that can catch homes off guard, especially if there are any small leaks or poor sealing around windows and doors.

Mold is a fungus that thrives in damp, moist, humid indoor environments. There are different types, including black mold, aspergillus, and penicillium. Arizona dust contains a significant burden of mold and fungi, most notably Coccidioides, the fungus behind Valley Fever, as well as Aspergillus and other aerosolized spores endemic to desert soil.

Because of this dust, Arizona residents often have a baseline level of exposure to outdoor fungi. Therefore, even minor indoor exposure can increase a person’s total discomfort and make their immune response much more sensitive and hyper-reactive to mold.

It can be difficult to treat because the symptoms resemble those of a cold or allergies. It’s particularly dangerous for those with a mold allergy or a weakened immune system. Nonetheless, your home is your sanctuary. Whether you’re renting an apartment or own your own property, you deserve to enjoy your home without having to worry about health issues.

Look for the signs

In the home, mold typically appears as black, green, white, or gray fuzzy or powdery patches. It can also appear as a subtle discoloration that resembles a stain.

These spots are typically found near water sources in bathrooms, kitchens, and laundry rooms. They can particularly be found in areas where moisture accumulates, such as under cabinets, behind the refrigerator, and near bathtubs. 

HVAC systems are also a major and frequently overlooked source. Mold colonizes in the coils, drain pan, and ductwork, then distributes spores throughout the entire home every time the system runs.

However, the first sign that you have mold in your home will most likely be a musty, earthy odor. The visible spots could be hidden behind walls, so this odor is most likely the first indicator.

Know the symptoms

Mold-related illness can look deceptively like a lot of other things, which is part of why it’s so difficult to diagnose. The most common symptoms include chronic fatigue, brain fog, sinus infection, shortness of breath, headaches, and a general sense of not feeling well without an obvious explanation.

Some people develop rashes, joint pain, digestive issues, and in sensitive individuals, mood changes like anxiety and depression are also documented.

People commonly mistake mold-related illness for a cold. A cold typically runs its course in 7 to 10 days, while mold-related illness is more chronic and does not resolve on its own as long as exposure continues.

The hallmark pattern is that symptoms are persistent, seem to improve when you leave home for several days, and do not respond to medications as a typical cold or infection would.

Treatment options

First, you need to remove the exposure. No amount of supplementation or medication will fully resolve symptoms if you are still living in a moldy environment. Call a remediation company to remove it. Make sure it is done correctly, or your symptoms won’t improve. Use an Indoor Air Quality Monitor to test the air before and after. This is the only way to truly know if the issue has been resolved. 

Once the exposure is addressed, focus on supporting the body’s detoxification pathways using binders such as cholestyramine or activated charcoal along with glutathione, NAC, and targeted antifungals when indicated. These will optimize your body’s ability to remove the mold, rather than constantly recirculating it.

It’s a good idea to address the downstream effects, including inflammation, nervous system dysregulation, and hormonal imbalances. Eat anti-inflammatory foods such as tomatoes, olive oil, and leafy greens. Prioritize your sleep, avoid stress triggers, and stay away from refined sugars and caffeine.

After the mold is removed and treatment begins, the timeline for how long symptoms might linger varies. The recovery timeline depends on how long someone was exposed, their individual genetics, and how comprehensively the exposure was removed. Some people feel better within a few weeks, while others, particularly those with genetic variants that impair mycotoxin, may need six to eighteen months of active treatment to feel themselves fully again.

 Mold exposure is a solvable problem. The key is to recognize the signs early, address the source, and give your body the support it needs to recover. Your home should restore you, not slowly wear you down. If something feels off, trust that instinct and take action. The sooner you address it, the sooner you can feel like yourself again.

Author: Dr. Jessica Schrand is a Doctor of Naturopathic Medicine at Live Well Wellness Center in Chandler, Arizona. Dr. Schrand constantly helps patients treat mold-related illness.