Are ear infections contagious?

Last update on Jul, 25, 2024

Have you ever experienced ear pain and wondered if you had an ear infection? You may have been curious how it happened. Did you catch it from someone or did something else cause the problem? Let’s look at how ear infections can develop, along with some ways to prevent them

What are ear infections?

Ear infections mostly occur when an infection like a cold causes overproduction of mucus, plus irritation and swelling in the Eustachian tubes—the tubes that run from the middle ear to the back of the throat. When the Eustachian tubes can’t drain properly, fluid or mucus builds up in the ear, creating a perfect environment for viruses or bacteria to thrive. 

Are ear infections contagious?

Ear infections themselves are not contagious. However, ear infections are caused by viruses and bacterial infections, which are contagious. This is especially true of viral middle ear infections, which are common in children. 

What causes ear infections?

Ear infections are most commonly caused by viruses and bacteria, but can also be due to swollen Eustachian tubes or adenoids with non-infectious fluid buildup.

Yes, you can get an ear infection from colds or other viruses. When you get sick with a cold or flu, you often have an overproduction of mucus, plus congestion and swelling in your nasal passages, Eustachian tubes and throat. All of these factors can cause a buildup of fluid or mucus and trigger an infection.

Yes, it is possible to get an ear infection from putting your fingers in your ears. Inserting your fingers or other objects, like cotton swabs, into your ears can introduce bacteria and potentially lead to further damage. One simple solution for how to prevent ear infections is to not stick objects into your ears and be cautious while cleaning them.

While smoking doesn’t directly cause ear infections, it can lead to a greater risk of ear infections. Cigarette smoke contains harmful substances which can weaken your immune system and increase your risk of infection, as well as cause problems in your middle ear

Yes, getting water in your ears can lead to ear infections. Swimmer’s ear is a specific type of outer ear infection that often affects swimmers or those who spend a lot of time in the water. When water gets trapped in your ears, the moist environment is an ideal breeding ground for bacteria, which can lead to infection.

Swimmer's ear drops are a type of medication used to treat and prevent swimmer's ear, also known as otitis externa, which is an infection of the outer ear canal. These drops typically contain ingredients that help to dry out excess moisture in the ear canal, kill bacteria, and reduce inflammation.

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What are the signs of an ear infection?

There are several signs of ear infections, but the most common symptoms in adults are ear pain and discomfort. You may also experience fluid in the ear, drainage or trouble hearing.

What are signs of ear infection in children?

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Young children are more prone to ear infections than adults. This is due to their developing immune systems and smaller Eustachian tubes that can more easily become blocked. Ear infection symptoms for a baby or young child may be different and harder to spot than in an adult, especially since they can’t always communicate what’s wrong. Some symptoms to be aware of are tugging or pulling at the ears, increased fussiness and crying, trouble sleeping, fever and loss of appetite.

What are the kinds of ear infections?

There are three main kinds of ear infections: middle, inner and outer ear infections.

A middle ear infection is the most common type, especially in young children. Middle ear infections are also called otitis media. This type of infection is usually caused by viruses or allergies. This happens when your Eustachian tubes (the tubes that connect your ears to your throat) become swollen and aren’t able to drain fluid like normal. Symptoms of a middle ear infection usually include: 

  • fever,
  • ear pain,
  • drainage or discharge from the ear,
  • hearing changes
  • fluid in the ear. 

There are two kinds of inner ear infection: labyrinthitis and vestibular neuritis. They are usually caused by a virus but can also be linked to allergies. Symptoms of an inner ear infection include ear pain, dizziness and trouble with balance, nausea and changes in hearing.  

An external or outer ear infection tends to be the result of bacteria. This is also referred to as otitis externa, or swimmer’s ear, because it’s associated with getting water in the ears. Bacteria can grow in the water in your ear, leading to an infection. Some symptoms of an outer ear infection include redness and itchiness on the outer ear, a swollen ear or neck, ear pain and discharge

How can you tell if an ear infection is viral or bacterial?

You may wonder if you or your child has a viral vs. bacterial ear infection. If you or your child are recovering from a cold or flu, it’s likely that the ear infection is viral. However, it can be difficult to tell, and symptoms often look the same. 

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What are home remedies for ear infections?

Home remedies for ear infection include:

  • using a hot or cold compress on your ear,
  • staying hydrated,
  • getting adequate rest
  • avoiding sleeping on the side of your infected ear.

Some ear infections, especially those that are bacterial, will need medical attention to help them clear up. When in doubt, see a doctor. 

How to prevent ear infections

Knowing how to prevent ear infections will go a long way toward fending them off before they even begin. Here are a few things you can do:

Children will often get an ear infection from a cold. While colds and other viruses are often inevitable, good and regular handwashing is a crucial part of preventing the spread of viruses and bacteria. You can also take steps to boost your and your child’s immune systems by ensuring they eat healthier foods and get good sleep.

Another way you can prevent ear infections is by not sticking objects in your ears. This will reduce the risk of bacteria getting into your ears. 

Does smoking cause ear infections? As mentioned above, there is a correlation between smoking and ear infections—but not direct causation. Avoiding smoking and exposure to secondhand smoke can decrease your chances of developing an ear infection

Can water in the ear cause infection? Yes—this is how swimmer’s ear can develop. When taking a shower, be careful to not get water, soap or shampoo stuck inside your ears, because water in the ear can cause infection. When swimming, using earplugs or wearing a swimming cap can help prevent water from settling in your ears.
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When to see doctor

Ear infections will often go away on their own. For ear infections that don’t improve over three or more days, it’s best to see a doctor. You also should see a doctor if you or your child is experiencing recurring ear infections, severe pain or fluid draining from the ear. If your baby is younger than three months old and has a fever above 102 degrees Fahrenheit, see a doctor right away. 

How do doctors treat ear infections?

How your ear infection is treated depends on what type of ear infection you have and how severe it is. For an infection that is mild, doctors may wait and see if it clears up on its own before prescribing antibiotics. They may recommend using over-the-counter pain relievers to manage the discomfort. If your doctor determines that you need an antibiotic, amoxicillin for an ear infection is often the first choice for middle ear infections in both adults and children. For swimmer’s ear or an outer ear infection, your doctor may prescribe antibiotic ear drops.

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