Most cases of pink eye clear up within 7 to 14 days, though the exact timeline depends on what’s causing it. Bacterial pink eye tends to resolve fastest, often improving in 2 to 5 days, while viral pink eye can linger for two to three weeks in uncommon cases. Knowing which type you’re dealing with helps you predict how long you’ll be uncomfortable and when you can safely return to normal life.
Bacterial Pink Eye: 2 to 14 Days
Bacterial pink eye is the quickest to resolve. Mild cases often clear up in 2 to 5 days without any treatment, though full recovery can take up to 2 weeks. You’ll typically notice thick, yellow or green discharge that may crust your eyelids shut overnight. This type usually starts in one eye and can spread to the other within a day or two.
Antibiotic eye drops or ointment can shorten the infection, reduce the chance of complications, and make you less contagious sooner. If your doctor prescribes antibiotics, most people notice improvement within the first couple of days. Without antibiotics, the infection still resolves on its own in most mild cases, but you remain contagious longer and the tail end of symptoms can drag on.
Viral Pink Eye: 7 Days to 3 Weeks
Viral pink eye is the most common type and also the most stubborn. Symptoms can appear anywhere from 12 hours to 12 days after you’re exposed to the virus. Once they show up, expect them to persist for several days at minimum. In rare cases, viral pink eye hangs on for 2 to 3 weeks.
The discharge with viral pink eye is usually watery rather than thick, and it often accompanies a cold or upper respiratory infection. There are no antibiotics that work against it. Treatment is purely about comfort: cool compresses, artificial tears, and patience. Symptoms tend to get worse before they get better, peaking around days 3 to 5 before gradually improving. If you have it in one eye, there’s a good chance the second eye will follow within a few days.
Allergic Pink Eye: As Long as the Trigger Lasts
Allergic pink eye doesn’t follow the same arc as an infection because it isn’t one. It lasts as long as you’re exposed to whatever is irritating your eyes: pollen, pet dander, dust mites, or contact lens solution. Both eyes are almost always affected at the same time, and itching is the dominant symptom rather than discharge.
Remove the allergen and symptoms can improve within hours. Over-the-counter antihistamine eye drops speed things up considerably. During a pollen season, though, allergic pink eye can come and go for weeks or months. The key difference is that this type is not contagious at all.
How Long You Stay Contagious
Both viral and bacterial pink eye spread easily through direct contact, shared towels, or touching your eye and then touching surfaces. Bacterial pink eye becomes less contagious once you’ve been on antibiotic drops for about 24 hours. Without antibiotics, you’re potentially contagious for as long as symptoms persist.
Viral pink eye is contagious for the entire duration of symptoms, and possibly even before symptoms appear. There’s no antibiotic shortcut to reduce the contagious window. Frequent handwashing, avoiding touching your eyes, and not sharing pillowcases or towels are your main tools for keeping it from spreading to the people around you.
Returning to Work or School
There’s no single rule that applies everywhere. The CDC recommends staying home if you have viral or bacterial conjunctivitis with other signs of illness like fever. If you don’t have a fever or systemic symptoms, you may be allowed to return with your doctor’s approval, as long as your work or school activities don’t involve close contact with others. Some schools and daycares have stricter policies and may require a doctor’s note or 24 hours on antibiotics before readmitting a child.
Signs It May Be Something More Serious
Standard pink eye is uncomfortable but not dangerous for adults and older children. However, certain symptoms suggest something beyond routine conjunctivitis. Seek care if you experience eye pain (not just irritation), sensitivity to light, blurred vision that doesn’t clear when you blink, or intense redness that seems disproportionate to typical pink eye. These can signal a deeper eye infection, a corneal ulcer, or inflammation inside the eye that needs prompt treatment.
Pink Eye in Newborns
Pink eye in newborns is a different situation entirely. Babies can develop conjunctivitis from bacteria or viruses passed during delivery, even if the mother has no visible symptoms at the time of birth. Some newborns also get mild eye irritation from the antimicrobial drops routinely given after birth. That type of chemical irritation typically clears up in 24 to 36 hours and is harmless.
Infections passed during birth are far more concerning. Gonorrhea-related conjunctivitis in a newborn can progress to corneal ulcers, bloodstream infections, or meningitis if untreated. Chlamydia-related pink eye can spread to the baby’s lungs. Herpes-related eye infections can cause severe damage. Any eye discharge in a newborn within the first few weeks of life warrants immediate medical evaluation, because the timeline for complications is short and the stakes are high.