Is pink eye contagious?

Yes, viral and bacterial conjunctivitis are highly contagious and can spread through direct contact with infected eye secretions, contaminated hands, or objects. Allergic conjunctivitis is not contagious.

Can pink eye be caused by allergies?

Yes, allergic conjunctivitis is common and is triggered by allergens such as pollen, dust mites, pet dander, or mold. It typically affects both eyes and causes itching, redness, and watery discharge.

Can I wear contact lenses if I have pink eye?

No, you should avoid wearing contact lenses until the infection has completely resolved and your doctor advises it is safe. Wearing contacts during conjunctivitis can worsen the infection and delay healing.

What is the best way to treat viral conjunctivitis?

Viral conjunctivitis usually resolves on its own within 1–2 weeks. Supportive care includes cold compresses, artificial tears, and good hygiene. Antibiotics are not effective against viruses.

How long does pink eye last?

Viral conjunctivitis typically lasts 1–2 weeks. Bacterial conjunctivitis usually improves within 24–48 hours of starting antibiotic treatment. Allergic conjunctivitis lasts as long as exposure to the allergen continues.

Conjunctivitis (Pink Eye): Symptoms, Causes, Treatment & Diagnosis

Overview

Conjunctivitis is a common condition where the conjunctiva (the clear membrane covering the white part of the eye and inner eyelid) becomes inflamed. It can be caused by a virus, bacteria, or allergies.

Illustration of a healthy eye versus an eye with conjunctivitis (pink eye)

Symptoms

Symptoms include redness in the white of the eye, a gritty feeling, itching, tearing, and a discharge (watery or thick).

Causes

Viral and bacterial conjunctivitis are contagious, often spread by contact with infected secretions. Allergic conjunctivitis is caused by allergens like pollen.

Treatment

Treatment depends on the cause: antibiotics for bacterial, supportive care for viral, and antihistamines for allergic.

When to See a Doctor

See a doctor if you have eye pain, sensitivity to light, or blurred vision, or if symptoms are severe.