How Do You Treat Conjunctivitis? Step by Step

Conjunctivitis, commonly called pink eye, is an inflammation of the thin clear tissue that lines the inside of the eyelid and covers the white part of the eye. Treatment depends entirely on the cause, which can be viral, bacterial, or allergic. For most cases, the first step is simple home care: apply a clean, cool compress to the closed eye and use artificial tears for comfort. If you suspect a bacterial infection, you need to see a doctor for antibiotic eye drops, as these require a prescription. If the cause is allergic, antihistamine eye drops and avoiding the trigger are the primary steps. The most important immediate step is to stop touching your eye and wash your hands frequently, as viral and bacterial conjunctivitis are highly contagious.

What Is the First Step to Treat Conjunctivitis?

Start by identifying the likely cause. Look at the discharge. If it is watery and clear, the cause is likely viral or allergic. If it is thick, yellow, or green, it is likely bacterial. This distinction matters because bacterial conjunctivitis requires prescription antibiotics, while viral and allergic forms do not.

Regardless of the cause, begin with hygiene. Wash your hands before and after touching your face. Use a separate towel. Do not share pillows or washcloths. These steps prevent the infection from spreading to your other eye or to other people.

Apply a clean compress. For viral or bacterial conjunctivitis, a warm compress can help soothe the eye and remove crusting. For allergic conjunctivitis, a cool compress reduces itching and swelling. Use a fresh cloth each time.

How Do You Treat Conjunctivitis with Home Remedies?

Home care is the mainstay for viral and allergic conjunctivitis. Artificial tears, available over the counter, lubricate the eye and wash away irritants. Use them as often as needed, but discard the bottle after one use to avoid contamination.

Warm compresses help with crusting and discomfort. Soak a clean cloth in warm water, wring it out, and place it over the closed eye for five to ten minutes. Repeat several times a day. For allergic conjunctivitis, use a cool compress instead.

Do not use over-the-counter redness-relief drops for more than a few days. These drops constrict blood vessels and can cause rebound redness when they wear off. They do not treat the infection.

Do not rub your eye. Rubbing worsens inflammation and can spread a viral or bacterial infection. If the itching is severe, an over-the-counter antihistamine eye drop may help for allergic cases.

When Do You Need a Doctor for Conjunctivitis?

See a doctor if you have thick yellow or green discharge, especially if it is accompanied by eye pain or blurred vision. These symptoms suggest bacterial conjunctivitis, which requires prescription antibiotic drops.

See a doctor immediately if you have severe pain, sensitivity to light, blurred vision that does not clear with blinking, or if your symptoms worsen after 24 hours of home care. These can be signs of a more serious condition, such as keratitis or uveitis, which require prompt medical attention.

People who wear contact lenses should remove them at the first sign of eye redness or irritation and see a doctor. Contact lens wearers have a higher risk of corneal infections, which can threaten vision if not treated quickly.

Newborns with eye discharge need immediate medical evaluation. This is not something to manage at home.

How Do You Treat Conjunctivitis with Prescription Medications?

Bacterial conjunctivitis is treated with antibiotic eye drops or ointment. These require a prescription. Common options include fluoroquinolones, aminoglycosides, or polymyxin combinations. The choice depends on the severity and the specific bacteria suspected.

Use antibiotic drops exactly as prescribed. Finish the full course even if symptoms improve. Stopping early can allow resistant bacteria to survive. Improvement typically begins within 24 to 48 hours, but the infection is not cleared until the full course is complete.

Viral conjunctivitis has no specific antiviral treatment for most cases. The infection runs its course in one to two weeks. Adenovirus is the most common cause and is highly contagious. Supportive care with artificial tears and compresses is the standard approach.

Herpes simplex virus can also cause conjunctivitis. This requires antiviral medication, either oral or topical, because it can cause corneal scarring. If you have a history of cold sores and develop eye redness with pain, tell your doctor.

Allergic conjunctivitis is treated with antihistamine eye drops, which are available over the counter or by prescription. Mast cell stabilizers and nonsteroidal anti-inflammatory drops are also used for chronic cases. Avoiding the allergen is the most effective long-term strategy.

How Long Does Conjunctivitis Last?

Viral conjunctivitis typically lasts one to two weeks. Symptoms peak around days four to seven and then gradually improve. The eye may remain red and irritated even after the infection clears.

Bacterial conjunctivitis improves within 24 to 48 hours of starting antibiotics. Without treatment, it may last seven to ten days. With treatment, the infection is usually resolved within a few days.

Allergic conjunctivitis lasts as long as you are exposed to the allergen. It resolves when the trigger is removed. Seasonal allergies may cause symptoms for weeks or months.

You are contagious as long as you have symptoms. For viral conjunctivitis, this can be up to two weeks. For bacterial conjunctivitis, you are contagious until 24 hours after starting antibiotics. Children with bacterial conjunctivitis can usually return to school or daycare one day after treatment begins.

How Do You Treat Conjunctivitis in Children?

Children get conjunctivitis more often than adults because they are exposed to viruses and bacteria in schools and daycare centers. The treatment approach is the same as for adults, but there are special considerations.

Use a clean, warm compress to remove crusting from the eyelashes. This is especially important in the morning when the eyelids may be stuck together. Wipe from the inner corner of the eye outward. Use a fresh part of the cloth for each wipe.

For children under two years old, consult a pediatrician before using any over-the-counter eye drops. Antibiotic ointment is often preferred over drops for young children because it is easier to apply and stays in the eye longer.

Keep children home from school or daycare while they have symptoms. Viral conjunctivitis is contagious for as long as symptoms last. Bacterial conjunctivitis is contagious until 24 hours after the first dose of antibiotics.

Do not use the same bottle of eye drops for both eyes if only one eye is infected. The dropper tip can become contaminated and spread the infection.

How Do You Prevent Conjunctivitis from Spreading?

Conjunctivitis spreads through direct contact with infected eye discharge or contaminated objects. The most effective prevention is frequent handwashing with soap and water, especially after touching your face.

Do not share towels, washcloths, pillowcases, or eye makeup. Replace eye makeup and brushes that were used during the infection. Mascara and eyeliner can harbor bacteria and viruses for weeks.

Clean surfaces that are frequently touched, such as doorknobs, faucets, and countertops. Adenovirus, the most common cause of viral conjunctivitis, can survive on surfaces for days.

Wash pillowcases and towels in hot water with detergent. This kills the infectious agents. Do not reuse a washcloth that has touched an infected eye without washing it first.

If you have conjunctivitis, avoid swimming pools and hot tubs. Chlorine does not reliably kill adenovirus, and you can spread the infection to others. Avoid wearing contact lenses until the infection completely clears.