Conjunctivitis, commonly known as “pink eye,” is an infection or swelling in the outer membrane of your eyeball.

Blood vessels in your conjunctiva, a thin membrane that lines part of your eye, become inflamed. This gives your eye the red or pink colour that’s commonly associated with conjunctivitis.

Symptoms of conjuctivitis:

Since bacterial or viral conjunctivitis is very contagious, it’s important to pay attention to your symptoms. The condition can be passed along to others up-to 2 weeks after it develops a trusted source.

Talk with your healthcare provider about treatment if you experience:

  • Pink or red-toned eyes
  • Gritty feeling in your eyes
  • Watery or thick discharge that builds up on your eyes at night
  • Itchiness in your eyes
  • Abnormal amount of tears

What causes pink eye?

The most common causes of pink eye are:

Viruses or bacteria:

Bacterial conjunctivitis is most often caused by the same type of bacteria that cause strep throat and staph infections. Conjunctivitis caused by a virus, on the other hand, is usually the result of one of the viruses that cause the common cold.

Whatever the cause, viral and bacterial pink eye is considered highly contagious. It can easily be transmitted from one person to another simply by hand contact.


Allergens, such as pollen, can cause pink eye in one or both of your eyes.

Allergens stimulate your body to create more histamines, which cause inflammation as a part of your body’s response to what it thinks is an infection. In turn, this causes allergic conjunctivitis.

Allergic conjunctivitis is usually itchy.


You also need to be careful if a foreign substance or chemical splashes into your eyes. Chemicals such as chlorine, found in backyard swimming pools, can cause conjunctivitis. Rinsing your eyes with water is a simple and effective way to keep a chemical irritant from causing pink eye.


Treatment of conjunctivitis depends on what’s causing it.

If your pink eye is the result of a chemical irritant, there’s a good chance it will go away on its own in a few days. If it’s the result of a bacterium, virus, or allergen, there are a few treatment options.

Bacterial conjunctivitis:

For a bacterial infection, antibiotics are the most common method of treatment. Adults usually prefer eye drops. For children, however, ointment might be a better choice because it’s easier to apply.

With the use of an antibiotic medication, your symptoms will probably start to disappear in just a few days.

Viral conjunctivitis:

Unfortunately, if you have viral conjunctivitis, there’s no treatment available. Just like the common cold, there are no cures for a virus. However, your symptoms will probably go away on their own in 7 – 10 days, after the virus has run its course.

In the meantime, using a warm compress, or cloth moistened with warm water, can help soothe your symptoms.

Allergic conjunctivitis:

To treat conjunctivitis caused by an allergen, your healthcare provider will probably prescribe an antihistamine to stop the inflammation.

Loratadine (e.g., Claritin) and diphenhydramine (e.g., Benadryl) are antihistamines that are available in over-the-counter medications. They may help clear your allergic symptoms, including allergic conjunctivitis.

Other treatments include antihistamine eye drops or anti-inflammatory eye drops.

Home remedies:

In addition to using a warm compress, you can also purchase eye drops at your local drugstore that mimic your own tears. They’ll help relieve your conjunctivitis symptoms. It’s also a good idea to stop wearing contact lenses until your case of pink eye completely clears up.

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