How Long Does Pink Eye Last? By Type and Treatment

Your eye is red, watery, and maybe crusted shut when you wake up. It’s most likely conjunctivitis — better known as pink eye — and the first question everyone asks is: how long does pink eye last? The honest answer is that it depends on the cause. Viral pink eye, the most common type, typically runs its course in 7 to 14 days. Bacterial conjunctivitis often clears within about a week, sometimes faster with antibiotic drops, and many mild cases resolve on their own. Allergic conjunctivitis can persist as long as the allergen exposure continues. According to the CDC, pink eye is one of the most common eye conditions in both children and adults, accounting for millions of cases in the United States each year.

For a broader look at common health conditions and their symptoms, visit our medical conditions guide.

Three Types of Pink Eye and Their Timelines

Not all pink eye is the same. The cause determines the duration, the treatment, and whether you can spread it to others. Figuring out which type you likely have is the first step toward knowing when you’ll feel — and look — normal again. When it isn’t clear, a clinician can help.

Viral Conjunctivitis: Day-by-Day Timeline

Viral conjunctivitis accounts for the majority of acute infectious conjunctivitis cases in adults, according to the American Academy of Ophthalmology. It’s most often caused by adenoviruses — the same family of viruses behind many colds — and tends to follow a predictable pattern.

Days 1-3: Onset

Symptoms usually begin in one eye and may spread to the other within 24-48 hours. The eye turns pink or red, feels gritty or scratchy (like sand in your eye), and produces a watery, thin discharge. You may notice light sensitivity and mild eyelid swelling. A cold or upper respiratory infection may accompany the onset. You’re highly contagious from this point.

Days 4-7: Peak Symptoms

Redness intensifies and the watery discharge continues. The second eye is often affected by now. Some people develop a tender, swollen lymph node in front of the ear (preauricular lymphadenopathy) — a clue that helps clinicians distinguish viral from bacterial conjunctivitis. Vision may be slightly blurry from discharge, but there shouldn’t be a significant change in your actual eyesight.

Days 8-14: Gradual Resolution

Redness slowly fades, discharge decreases, and the gritty sensation eases. Full resolution typically occurs within about two weeks, though some cases — particularly those caused by adenovirus types associated with epidemic keratoconjunctivitis (EKC) — can last 3-4 weeks and may temporarily cloud the cornea. You generally remain contagious for as long as your eyes are red and tearing.

Treatment: There’s no antiviral cure for typical viral conjunctivitis. Management is supportive — cool compresses, preservative-free artificial tears, and not wearing contact lenses until symptoms fully resolve. In select severe cases a clinician may consider prescription treatment, but steroid eye drops are only ever used under an eye doctor’s supervision because they can worsen certain infections.

Bacterial Conjunctivitis: Day-by-Day Timeline

Bacterial conjunctivitis is caused by organisms such as Staphylococcus aureus, Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis. It’s more common in children than in adults.

Days 1-2: Onset

One eye becomes red with a thick, yellowish-green discharge that may glue the eyelids together, especially after sleep. Unlike viral conjunctivitis, the discharge is purulent (pus-like) rather than watery. The eye may feel irritated and mildly uncomfortable.

Days 3-5: The Turning Point

Many mild bacterial cases begin improving on their own around this time. When a clinician prescribes antibiotic eye drops or ointment, they usually reduce the bacterial load within 24-48 hours, and discharge and redness begin to ease. Most people notice meaningful improvement within a few days.

Days 5-7: Resolution

With or without antibiotics, most uncomplicated bacterial conjunctivitis resolves within about a week; mild cases often self-resolve in 7 to 10 days. Antibiotic drops can shorten the illness and reduce the contagious period, which matters for school- and work-age people, but reviews (including CDC and AAFP guidance) note that antibiotics are frequently unnecessary for mild cases. That decision belongs to a clinician.

Treatment: If antibiotics are appropriate, they are prescribed by a healthcare provider for the specific situation. Warm compresses help loosen crusted discharge, and frequent handwashing is essential to prevent spread. Do not use someone else’s drops or leftover antibiotic drops from a past infection.

Allergic Conjunctivitis: Duration and Management

Allergic conjunctivitis isn’t an infection — it’s an immune reaction to allergens such as pollen, dust mites, pet dander, or mold. It typically affects both eyes at once (a key differentiator from infectious types) and causes intense itching, redness, tearing, and sometimes puffy eyelids.

Duration depends entirely on allergen exposure. Seasonal allergic conjunctivitis flares in spring and fall and can persist for weeks to months. Perennial allergic conjunctivitis, triggered by year-round allergens, can be an ongoing issue.

Treatment: Over-the-counter antihistamine/mast-cell-stabilizer eye drops (such as ketotifen), oral antihistamines, cool compresses, and allergen avoidance. Prescription options exist for more severe cases and are chosen by a clinician. Allergic conjunctivitis is not contagious.

How to Tell Which Type You Have

Distinguishing between types at home isn’t always straightforward, but several clues help:

• Watery, thin discharge + cold symptoms = likely viral
• Thick, yellow-green discharge + crusty eyelids = likely bacterial
• Intense itching + both eyes + allergy season = likely allergic
• Tender swollen lymph node in front of the ear = strongly suggests viral
• One eye first, then the other = more common in viral and bacterial
• Both eyes from the start = more likely allergic

When in doubt, a healthcare provider can examine the discharge and eye appearance to make a clinical determination. Cultures are rarely needed for routine cases, but they may be used for severe, recurrent, or contact-lens-related infections.

Preventing the Spread of Pink Eye

Viral and bacterial conjunctivitis are highly contagious. The CDC recommends these precautions:

• Wash your hands frequently with soap and water, especially after touching your eyes
• Avoid touching or rubbing your eyes
• Don’t share towels, washcloths, pillowcases, or eye cosmetics
• Replace eye makeup (mascara, eyeliner) used during an infection
• Clean, disinfect, or discard contact lens cases and avoid wearing contacts until fully recovered
• Stay home from school or work per your provider’s or institution’s guidance — commonly at least 24 hours after starting antibiotic treatment for bacterial pink eye, or while actively symptomatic for viral pink eye

Home Remedies and Comfort Measures

While you wait for pink eye to run its course, several home-care strategies can reduce discomfort and limit spread within your household.

Warm and Cool Compresses

A warm compress (a clean cloth soaked in warm water) helps loosen crusted discharge — especially useful each morning when bacterial conjunctivitis glues the lashes shut. Cool compresses soothe the itching and irritation of allergic and viral conjunctivitis. Use a clean cloth each time and wash used cloths in hot water to avoid recontamination.

Artificial Tears

Preservative-free artificial tears (available over the counter) help flush irritants and lubricate the eye surface, and they’re safe for all types of conjunctivitis. Buy from reputable manufacturers and check for recalls, since contaminated over-the-counter eye drops have prompted FDA warnings in recent years. Avoid “get the red out” drops (such as original Visine), as the vasoconstrictors can cause rebound redness and don’t treat the underlying problem.

Contact Lens Management

If you wear contact lenses, stop wearing them the moment symptoms appear and switch to glasses until the infection has fully resolved — typically at least 24 hours after finishing antibiotic treatment (bacterial) or until all symptoms have cleared (viral). Discard any disposable lenses that were in your eyes when symptoms started, and disinfect reusable lenses and their case. The American Academy of Ophthalmology recommends replacing the lens case as well, since biofilm can harbor bacteria. Any eye pain or blurred vision while wearing contacts needs prompt evaluation.

Hygiene for the Household

Pink eye spreads easily through a household, especially among children. Give the infected person their own towels and washcloths, washed separately in hot water. Clean and disinfect frequently touched surfaces — doorknobs, faucet handles, light switches. Change pillowcases daily. If one eye is infected, try not to cross-contaminate the other by rubbing, and wash your hands before and after touching your face.

Pink Eye in Specific Situations

Newborn Conjunctivitis

Conjunctivitis in a newborn (ophthalmia neonatorum) within the first month of life is a medical urgency. It can be caused by bacteria acquired during birth — including Neisseria gonorrhoeae and Chlamydia trachomatis — which can cause severe eye damage if not treated promptly. U.S. hospitals routinely apply antibiotic eye ointment to newborns shortly after birth as a preventive measure. If a newborn develops eye redness, swelling, or discharge, seek immediate medical care.

Pink Eye With a Cold

It’s very common for viral conjunctivitis to develop alongside or shortly after a cold, since adenoviruses cause both. If you have cold symptoms plus eye redness with watery discharge, the conjunctivitis is most likely viral. No special treatment is needed beyond supportive care, and the pink eye typically resolves as the cold does, following the 7-14 day viral timeline.

When to See a Doctor

Many mild cases of pink eye can be managed at home. However, schedule an appointment if:

• Symptoms don’t improve after about 5-7 days (bacterial) or 2 weeks (viral)
• You have significant eye pain (beyond mild irritation)
• Your vision becomes blurry or you see halos around lights
• The discharge is very heavy or your eyelids swell significantly
• You wear contact lenses and develop conjunctivitis symptoms
• You have a weakened immune system
• A newborn (under 28 days old) develops eye redness or discharge — this requires urgent evaluation

Over-the-Counter Treatments and What to Avoid

While prescription antibiotic drops are sometimes needed for bacterial conjunctivitis, several OTC products can help manage symptoms of all types.

Reasonable OTC options:

• Preservative-free artificial tears — safe for all types; soothe irritation and flush discharge
• Antihistamine/mast-cell-stabilizer eye drops (such as ketotifen) — specifically for allergic conjunctivitis; relieve itching
• Cool compresses — reduce swelling and soothe itching for viral and allergic types
• Warm compresses — loosen crusted discharge in bacterial conjunctivitis

What to avoid:

• Redness-reducing drops (original Visine, some Clear Eyes) — vasoconstrictors temporarily reduce redness but can cause rebound redness, don’t treat the cause, and may mask symptoms that need evaluation
• Leftover antibiotic or steroid eye drops — never reuse old drops or someone else’s prescription; steroid drops in particular can seriously worsen certain eye infections and should only be used under an eye doctor’s supervision
• Herbal or homeopathic eye drops — the FDA has warned about contamination risks in some of these products, and they lack evidence for treating conjunctivitis

Frequently Asked Questions

Can I go to work or school with pink eye?

Many schools and workplaces ask you to stay home with bacterial conjunctivitis until you’ve been on antibiotic drops for 24 hours. With viral conjunctivitis, there’s no treatment that quickly reduces contagiousness, so policies vary. Practice good hygiene and follow your school’s or employer’s health policy.

Will pink eye go away without treatment?

Viral conjunctivitis resolves on its own — no treatment speeds the virus itself. Mild bacterial conjunctivitis also self-resolves in many cases, though antibiotic drops can speed recovery and reduce spread when a clinician decides they’re warranted. Allergic conjunctivitis persists until the allergen is removed or the immune response is managed.

Can pink eye cause permanent damage?

Uncomplicated conjunctivitis rarely causes lasting damage. However, certain aggressive infections — particularly gonococcal conjunctivitis or severe adenoviral keratoconjunctivitis — can affect the cornea and potentially impair vision if untreated. This is why severe or persistent cases, and any contact-lens-related symptoms, should be evaluated promptly.

Is pink eye always contagious?

No. Allergic conjunctivitis is not contagious at all. Only viral and bacterial forms spread from person to person. Chemical or irritant-induced conjunctivitis (from chlorine, smoke, etc.) is also non-contagious.

The Bottom Line

How long pink eye lasts depends on the cause: viral conjunctivitis takes about 1-2 weeks, bacterial usually clears in about a week (and often on its own), and allergic conjunctivitis sticks around as long as the allergen does. Good hygiene — especially handwashing and not sharing personal items — is your best defense against spreading or catching the infectious forms. Never reuse leftover antibiotic or steroid drops. And if your symptoms are severe, worsening, affecting your vision, or involve contact lenses or a newborn, don’t wait it out — an eye-care professional can determine the type and get you the right care.

Sources

• Centers for Disease Control and Prevention (CDC) — conjunctivitis (pink eye): about, causes, and prevention.
• American Academy of Ophthalmology (AAO) — conjunctivitis / pink eye; contact lens care.
• MedlinePlus, U.S. National Library of Medicine — pink eye.
• American Academy of Family Physicians (AAFP) and peer-reviewed reviews — conjunctivitis diagnosis and management.