What Causes Sneezing (2024)

Discover the causes of sneezing and how to prevent and avoid sneezing triggers.

Sneezing is a way for your body to expel dirt and debris that may have gotten through your nose’s mucus membranes, your first line of defense against inhaled irritants. When these sensitive mucus membranes are irritated, they protect you by causing you to sneeze.1

There are many factors that can cause sneezing. Some common causes of sneezing include the cold or flu, allergies, nasal sprays, dust, or air pollution.1

Why do we sneeze?

Sneezing is a protective reflex. In order to stop an irritant from going from your nose into your sinuses or lungs, you sneeze to push it out. It’s the body’s way of tossing out an intruder.2Sneezing is not normally the result of a serious health problem and is part of your body’s natural defense system.1

How to prevent sneezing at home3:

Sneezing can be annoying, and it can spread cold and flu germs. There are a few ways to reduce sneezing that range from home remedies and simple tips to over-the-counter medications that include:

  • Antihistamines
  • Nasal sprays
  • Anti-viral medication (when sneezing is caused by a cold or flu)

You can also avoid the triggers that cause you to sneeze in your home by making some simple adjustments1:

  • Make sure your bedding is always clean
  • Vacuum pet hair and keep your pets groomed and clean
  • Buy an air filtration machine to help clean the air in your home before you breathe it in
  • Get your house checked for mold, which can lead to excessive sneezing and other, more serious health problems

Should you ever hold in a sneeze?

It may feel like second nature to hold in a sneeze, especially if you’re trying to suppress the spread of germs or avoid disrupting those around you. But holding in your sneeze may actually do more harm than good. By not sneezing, you actually keep irritating substances in your body, where they can enter the sinuses and lungs.2

A sneeze may leave the body at 70 miles per hour, holding it in may actually cause damage to your ears and throat.2 Mucus may accumulate and be forced into your ears’ Eustachian tubes. These tubes are small passages that connect your ears to your throat and help to drain fluids and alleviate pressure. If the built-up mucus is due to a virus or bacterial infection and is pushed into these tubes, the result may be a middle ear infection or holes in the eardrum.2 The simple way to avoid these complications is to let out your sneezes and allow your body to rid itself of irritants. Make sure to thoroughly wash your hands and clean any nearby surfaces afterwards.

When should you see a doctor about sneezing?

Most sneezing is rarely indicative of a serious problem but there may be a few instances where you should seek medical attention for yourself or a member of your family2,3:

  • If symptoms last for more than 10 days
  • If symptoms are severe or unusual
  • If a child is younger than three months of age and is lethargic or has a fever

You should also contact your doctor if you are at high risk for serious flu complications. People who are considered high risk for these kinds of complications are young children under the age of 5, adults 65 and older, pregnant women, and people with medical conditions like asthma, diabetes, and heart disease.3

A medical professional will perform a physical exam and look at your nose and throat.1 You may have to answer questions about your symptoms and medical history. In some cases, allergy testing may be recommended to determine the cause of the sneezing if other illnesses are ruled out.1

How to treat sneezing

If your sneezing is caused by a cold or flu, it may be best to try an over-the-counter medication that contains an antihistamine such as diphenhydramine HCI, which can ease your sneezing as you get over the bug. In addition to diphenhydramine HCI contains ingredients that relieve nasal congestion, cough, body aches, sore throat, fever, headache, and runny nose.

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What Causes Sneezing (2024)

FAQs

What Causes Sneezing? ›

Sneezing happens when the mucous membranes in your nose or throat are irritated. Several factors can cause your mucous membranes in your nose and throat to be irritated. These include3: Allergy to pollen (hay fever), mold, dander, and dust.

What is the reason for sneezing? ›

Sneezing is caused by irritation to the mucous membranes of the nose or throat. It can be very bothersome, but is rarely a sign of a serious problem. Sneezing can be due to: Allergy to pollen (hay fever), mold, dander, dust.

Why do we sneeze in short answer? ›

There are lots of dust particles present in the air. When an individual inhales the dust enters the nose, these particles of dust pass through the hair in the nasal cavity. These disturbances send to the brain and create sneezing. Sneezing also helps in expelling the dust, making the air passage clean.

What triggers the sneeze response? ›

Sneezing can further be triggered through sudden exposure to bright light, a particularly full stomach and physical stimulants of the trigeminal nerve, as a result of central nervous system pathologies such as epilepsy, posterior inferior cerebellar artery syndrome or as a symptom of psychogenic pathologies.

What immune response is sneezing? ›

When the immune system detects a foreign invader, it sets off a chemical reaction, producing immunoglobulin E (IgE) antibodies. This triggers the release of histamines, which cause common allergy symptoms such as runny nose, sneezing and itchy, watery eyes (allergic rhinitis).

Why do I sneeze 20 times in a row? ›

The most likely culprit behind your sneezing fits is allergies. With seasonal allergies, airborne triggers, like pollen, are found in higher levels in the air and can start a sneezing fit. Besides seasonal allergies, allergens from pets and dust can also cause frequent sneezing and may be why you can't stop sneezing.

What is the science behind sneezing? ›

A sneeze is a nasal restart: Whatever irritated your nose to create the sneeze overwhelmed the nasal system. So, much like shutting down a computer to restart the system, the sneeze resets the nasal environment. That's why it's common to sneeze several times in a row if the irritant hasn't cleared out.

Why do people sneeze 7 times? ›

Sneezing more than once is very normal. Sometimes it just takes more for you to clear an irritant from your nose. One study found that about 95% of people sneeze about four times a day. “Some people notice they sneeze the same number of times, every time,” says Dr.

Why do we sneeze 3 times? ›

That jet of air is filled with 2,000 to 5,000 germ-laden droplets. Have you noticed that we often sneeze in threes? With its great force and velocity, a single sneeze is sometimes enough to clear an irritant out of your system, but a triple sneeze happens when we need to get deeper irritants out.

Why do sneezes exist? ›

Sneezing is the body's way to remove something that is irritating your child's or your own nose. If something gets into your nose that it doesn't like; a message goes to the brain to activate a series of muscles in the belly, the chest, and the head to create the action we call sneezing.

What happens if you resist a sneeze? ›

It might be bad to hold in a sneeze. There are some risks of holding in a sneeze, such as a ruptured eardrum, rupture of superficial blood vessels to the eye or nose, throat or neck pain, and less commonly, rupture of a brain aneurysm or rib fractures.

Why do I sneeze so violently? ›

It starts with a tickle in the nose. Something maybe a piece of dust or a speck of pollen irritates the mucous lining of the upper respiratory tract and sets nerve endings jangling.

What happens right before you sneeze? ›

According to the Library of Congress, a sneeze begins with a sensation similar to a tickle inside the nerve endings of your nose. These nerve endings send a signal to your brain to tell it that it needs to get rid of something that is irritating the lining of the nose.

What autoimmune disease causes sneezing? ›

Allergic rhinitis is an inflammatory autoimmune disease that causes symptoms such as sneezing, itchy nose, difficulty breathing and/or runny nose (medical term: increased nasal discharge).

What part of the body controls sneezing? ›

The afferent pathways are through the olfactory and ethmoidal nerves, which converge in the putative “sneezing centre” in the medulla.

What is the cure for sneezing? ›

Limiting exposure to dust, pollen and pet dander is the most effective remedy to get rid of sneezing. If you are allergic to some animals, make sure to wash your hands after petting them. You can also use ingredients like honey, black pepper and turmeric that can help in controlling sneezing.

Why am I sneezing a lot but not sick? ›

Sneezing is often triggered by irritant to the nose,” says Dr. Yoo. “Your trigeminal nerve is a large nerve with branches to different parts of the face and irritation, from allergens, objects in the nose, boogers and mucus, of this nerve in the nose triggers the body to sneeze.”

Does sneezing mean someone is thinking about you? ›

In China, Vietnam, South Korea, and Japan, for instance, there is a superstition that if talking behind someone's back causes the person being talked about to sneeze; as such, the sneezer can tell if something good is being said (one sneeze), someone is thinking about you (two sneezes in a row), even if someone is in ...

What happens to your body when you sneeze? ›

The abdominal and chest muscles activate, compressing your lungs and producing a blast of air. Then the back of your tongue elevates, partially closing the passage to your mouth and forcing the air out through both your nose and mouth.

How can I stop sneezing? ›

Here, we'll teach you all the tricks:
  1. Learn your triggers. Identify the cause of your sneezing so that you can treat it accordingly. ...
  2. Treat your allergies. ...
  3. Protect yourself from environmental hazards. ...
  4. Don't look into the light. ...
  5. Don't eat too much. ...
  6. Say 'pickles' ...
  7. Blow your nose. ...
  8. Pinch your nose.

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