What happens if you are exposed to black mold for a long time?

Author: Brando Borer  |  Last update: Saturday, November 22, 2025

Common symptoms include sneezing, coughing, congestion and eye irritation. It rarely causes serious illness or death but may worsen asthma symptoms. You can't cure a black mold allergy, but a healthcare provider can diagnose it and help treat your symptoms.

What happens if you breathe in black mold for too long?

Is black mold deadly? For most people, being exposed to black mold may only cause mild respiratory systems, such as a runny nose. Experts don't agree on whether it can lead to more serious issues, such as pulmonary hemorrhage (bleeding in the lungs), which can be fatal. More studies need to be done.

What are the long-term effects of black mold exposure?

People who live or work in buildings with black mold are at risk for developing hypersensitivity pneumonitis, an immune system disorder that causes chronic lung inflammation. Hypersensitivity pneumonitis is an allergic reaction that occurs after sustained exposure to a particular irritant or allergen.

What happens if black mold is left untreated?

Toxic effects: In rare cases, prolonged and significant exposure to high concentrations of black mold and its mycotoxins may result in more severe health effects. These can include neurological symptoms, such as headaches, dizziness, memory problems, difficulty concentrating, and fatigue.

What are signs of mold sickness?

Although symptoms can vary, the most common symptoms seen in people exposed to mold indoors include:
  • Nasal and sinus congestion.
  • Eye irritation, such as itchy, red, watery eyes.
  • Wheezing and difficulty breathing.
  • Cough.
  • Throat irritation.
  • Skin irritation, such as a rash.
  • Headache.

What are the symptoms of a mold allergy or reaction to exposure?

Can I stay in a house with black mold?

Is it okay to be in house with black mold? Black mold can cause health problems. As such, it is not advisable to be in a house with black mold. If a person must stay in a house with black mold, they should try to seal off any areas where black mold is present to reduce contact with it.

Can you recover from black mold exposure?

The best way to feel better if you have black mold allergy symptoms is to get out of the moldy environment and avoid any continued exposure. You can also take prescription or over-the-counter (OTC) medications to help relieve your symptoms.

Can mold behind walls make you sick?

It irritates the nose and throat, which can lead to both sneezing and coughing as your body tries to get rid of the irritant. Inhaling mold spores can also trigger coughing in people with allergies or an asthma attack, for those with asthma.

What are the three stages of mold toxicity?

Mold can make you sick in 3 ways (1) allergic reaction (2) Invasive fungal infection (3) Mycotoxin poisoning.

Is brain damage from mold reversible?

Mold exposure can cause issues with concentration, judgment, and overall brain function. Luckily, memory loss caused by mold is often reversible once the mold is eliminated from a home. Alzheimer's researcher Dr. Amen found that memory loss from mold is often misdiagnosed as dementia or Alzheimer's.

What kills mold in the body?

Activated Charcoal: Absorbs toxins, potentially helping to clear mold spores from your system. Take it in capsule form to absorb toxins. It's best used under medical supervision, especially after known mold exposure.

How do you know if mold is in your lungs?

Symptoms of aspergillosis include:
  • shortness of breath.
  • a cough – you may cough up blood or lumps of mucus.
  • wheezing.
  • a high temperature.
  • losing weight without trying.
  • feeling tired.

What are the neurological symptoms of black mold?

Mold exposure can cause a variety of neurological effects, including headaches and migraines, cognitive impairments, memory loss, confusion, impaired motor skills, depression, and other behavioral changes. Due to mold exposure, people with weakened immune systems may be more susceptible to neurological symptoms.

What does a mold cough sound like?

The cough is typically dry and non-productive, meaning it doesn't bring up mucus. It is sometimes described as having a "barking" or "hacking" sound.

What are the signs of mold sickness?

Signs and symptoms of allergic rhinitis caused by a mold allergy can include:
  • Sneezing.
  • Runny or stuffy nose.
  • Cough and postnasal drip.
  • Itchy eyes, nose and throat.
  • Watery eyes.
  • Dry, scaly skin.

How to tell if mold is behind drywall?

Musty Smell

If you think there's mold in your walls, get on your hands and knees and smell the electrical outlets. This might sound silly, but it may help you sense mold if it's growing within walls. Outlets have better access to the area behind the walls. Thus, smelling them can help identify the mold problem.

What does harmless black mold look like?

Although the name implies a uniform coloring, black mold may appear black, dark green, or dark brown. It typically grows as a cluster of round spots with a distinctly wet, slimy appearance. As stated, black mold typically appears fuzzy or furry.

What kills 100% of mold?

Hydrogen peroxide, commonly used to disinfect wounds, is active against a wide variety of micro-organisms including mold. It acts by releasing oxygen at a rapid rate, which kills mold by oxidizing the surface and breaking down proteins and DNA.

How do I test myself for mold toxicity?

Urine mycotoxin tests are ideal for testing yourself (and your family members) for mycotoxin exposure. They're absolutely painless, totally non-invasive, and incredibly easy to use. With just a small amount of urine, our experts will be able to spot up to 15 different illness-causing mycotoxins.

Is it okay to be in a house with black mold?

Coming into contact with black mold spores is not a very healthy scenario. The main symptoms that you will exhibit are itchy and watery eyes, wheezing, sneezing, and asthma. In many cases, the homeowner ignores these signs.

How long can you live with mold before you get sick?

In some cases, people may experience symptoms of mold sickness immediately after exposure, while others may not notice any effects for weeks or even months.

Is it bad to sleep in a house with black mold?

A: It's not advisable to sleep in a mouldy room. Mould spores can affect your respiratory system, allergies and sleep quality. Over time, it can lead to more severe health issues, making it a bad choice for a sleep environment.

Do you have to get rid of everything if you have black mold?

Scrub mold off hard surfaces with detergent and water, and dry completely. Absorbent or porous materials, such as ceiling tiles and carpet, may have to be thrown away if they become moldy.

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