How long does it take for mold exposure to make you sick?

Author: Saul Gaylord  |  Last update: Friday, August 15, 2025

According to the CDC, people usually experience their first symptoms within 2 to 9 hours of their first exposure. On the other hand, some people could go for weeks or months before feeling sick if their exposure is limited enough. This is why it is also important to check damp, dark areas of your home for mold.

How long do you have to be exposed to mold before it affects you?

Mold symptoms usually begin 2 to 9 hours following exposure, and these symptoms will likely remain on and off until the mold is officially removed. That said, certain variables may affect how long your mold symptoms will last.

What are the 10 warning signs of mold toxicity?

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.

How can you tell if mold is making you sick?

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 long does it take for mold to make you sick?

If you're allergic to black mold, you may have symptoms immediately after spores come in contact with your body. If you're not allergic to black mold, you may not have any symptoms, or your symptoms may not appear for a long time.

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

Can you recover from black mold exposure?

Yes, you can recover from mold exposure. Once removed from the moldy environment and after receiving appropriate treatment, symptoms usually improve. However, prompt medical intervention is vital, as prolonged exposure can lead to chronic respiratory issues or more severe health complications.

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 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.

What happens if you breathe in mold for a long time?

Chronic Fatigue: Mold forces your body to work harder, leading to persistent fatigue, especially in those with pre-existing conditions. Lung Issues: Prolonged exposure can cause lasting damage to lung function.

How to tell if mold is behind walls?

How to Detect Mold in Walls
  1. Water stains.
  2. Dark rings.
  3. Discoloration.
  4. Deterioration like peeling, bubbling, or cracking of the paint or wallpaper.

How to tell if your house is toxic?

If you suspect your asthma worsens or is more severe than usual, contact your doctor or medical professional.
  1. Bad Smells In The Home. When there's a bad smell in the home, you can tell. ...
  2. Peeling Wallpaper. ...
  3. Spots On The Wall. ...
  4. Bad Allergies Won't Go Away. ...
  5. Visible Mold Growth. ...
  6. Past Water Damage.

What are the symptoms of mold in the gut?

Mold exposure has been linked to various gastrointestinal symptoms, including nausea, vomiting, diarrhea, abdominal pain, and bloating. These symptoms can range from mild discomfort to more severe digestive disturbances, depending on the individual's sensitivity and the extent of mold exposure.

How can I test myself for mold toxicity?

There are several methods available to test for mold exposure:
  1. Blood Tests: Blood tests for mold exposure detect specific antibodies produced by the immune system in response to mold exposure. ...
  2. Skin Prick Tests: This method involves exposing the skin to small amounts of common molds to check for allergic reactions.

What is the first symptom of mold exposure?

Mold Allergy Symptoms

Living in a house with unhealthy mold conditions, being exposed to it at work or at school might cause the following symptoms: Stuffy or runny nose. Eye irritation (watering, red eyes, itching) Sore, dry throat.

How long can you stay in a house with mold?

Generally, a person can stay in a moldy home for years, though some people could feel extremely uncomfortable.

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.

How long does mold sickness last?

For most people symptoms will go away in 1 to 3 days, assuming their exposure is limited and the mold is cleaned up/avoided. If your symptoms persist or worsen, it would be a good idea to visit your doctor. They can prescribe an allergy medication or provide other treatment ideas to make sure you are feeling better.

Can you go to urgent care for mold exposure?

Once the source of mold is uncovered and cleaned, you should seek medical treatment– whether or not you have begun to develop symptoms. If your symptoms are mild to moderate, visiting an urgent care center is a great option to receive same-day diagnosis and care.

Is mold in lungs permanent?

Exposure to mould can have an impact on your lungs, particularly for people with a lung condition like Chronic Obstructive Pulmonary Disease (COPD), bronchiectasis or asthma. And whether you have a pre-existing condition or not, prolonged exposure to mould can cause irreversible damage.

Can your body recover from mold?

Healing from mold toxicity is unique to the individual. In people who are not genetically susceptible to mold, a normal immune system response to spores or mycotoxins will generally help clear the body of the threat. For those who are genetically vulnerable, it's not as simple.

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.

What does black mold smell like?

Black mold has a distinct smell. It's often described as musty and earthy and may even smell like rotting vegetables, plants, or paper. Some think it smells like cedar.

Should I worry about mold behind drywall?

However, another reason to be worried about mold behind drywall is what it tells you about the conditions inside your wall. Mold can only grow where there is enough water to support it. This means that when you have mold growing behind drywall, you have excess water behind your wall.

How to test if your house is making you sick?

If you want to monitor your indoor air quality proactively, you can invest in an air quality monitor. This will help you test if your house is making you sick. These devices constantly check the indoor air quality and provide feedback about the levels of different pollutants.

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