Pink eye cases do tend to spike at certain times of year, and current surveillance data shows conjunctivitis activity is rising, particularly among young children. UK health surveillance from early 2026 reported increased conjunctivitis consultations in children aged 1 to 4, along with more calls and online assessments for eye problems, though levels remained within seasonal expectations. In the United States, pink eye follows a similar seasonal pattern, with cases climbing during late winter and early spring as respiratory viruses circulate through schools and daycares.
If you’re noticing pink eye popping up around your household, workplace, or your child’s school, you’re not imagining it. Here’s what’s driving the spread and what you can do about it.
Why Pink Eye Peaks in Winter and Spring
Most infectious pink eye is caused by the same types of viruses responsible for colds and flu. Adenoviruses are the biggest culprit. These viruses infect the respiratory system first, causing coughs, sore throats, runny noses, and fevers, then spread to the eyes through touch or close contact. When cold and flu season ramps up, pink eye rides along with it. Kids in daycare and elementary school are especially efficient at spreading it because they touch their faces constantly and share spaces where hand hygiene is inconsistent.
Bacterial pink eye also circulates year-round but clusters in the same cold-weather months. Allergic conjunctivitis, on the other hand, picks up in spring and fall when pollen counts rise. It looks similar but isn’t contagious at all.
How to Tell What Type You Have
People often assume the color or thickness of eye discharge tells them whether they have a viral or bacterial infection, but research shows discharge type alone isn’t a reliable indicator. A systematic review of conjunctivitis studies found that purulent, mucus, or watery discharge wasn’t specific to any particular cause.
What does help distinguish them: bacterial conjunctivitis tends to affect both eyes, causes mattering (crusting) of the eyelids, and typically occurs in people without a history of conjunctivitis. Viral pink eye more often starts in one eye and then spreads to the other, and it frequently shows up alongside cold symptoms like a sore throat or runny nose.
Allergic conjunctivitis has its own signature. The hallmark is intense itching, often moderate to severe, along with watery, “rope-like” discharge and swelling of the white part of the eye. Infectious pink eye causes milder itching by comparison. If both eyes itch intensely every time you step outside and you’re not sick otherwise, allergies are the likely explanation.
How Long It Lasts
Viral pink eye is the most common form and usually the most stubborn. Most mild cases clear up in 7 to 14 days without treatment, but some drag on for two to three weeks or longer. Antibiotics do nothing for viral pink eye since they only target bacteria.
Bacterial pink eye resolves faster. Without any treatment, mild cases often improve within 2 to 5 days, though complete clearing can take up to two weeks. Antibiotic eye drops or ointment can shorten the illness, reduce complications, and help you stop spreading it sooner. Your doctor is most likely to prescribe antibiotics if there’s significant pus-like discharge, if you have a weakened immune system, or if a specific bacterial strain is suspected.
When You’re Contagious
Pink eye remains contagious as long as you have tearing and matted, crusty eyes. There’s no fixed number of days you can count on. For most people, the contagious window overlaps with the period of active symptoms, which means roughly a few days to two weeks depending on the cause.
The CDC recommends staying home from work or school if you have viral or bacterial conjunctivitis with other signs of illness like fever or fatigue. Children should stay out of school if they can’t avoid close contact with others, and returning generally requires clinician approval and completion of any prescribed treatment.
How It Spreads on Surfaces
Pink eye doesn’t just pass from person to person through direct contact. The germs responsible survive on surfaces longer than most people expect. Bacteria that cause conjunctivitis can last 2 to 8 hours on surfaces, with some strains persisting for two days or more. Viruses are hardier: most survive 24 to 48 hours on countertops, doorknobs, and shared items, and certain viruses can remain viable for up to eight weeks.
This is why outbreaks tear through classrooms and households so effectively. A child rubs their eye, touches a doorknob, and the next person who touches that doorknob and then touches their own face picks up the infection. Towels, pillowcases, and makeup are other common vehicles.
Managing Symptoms at Home
For both viral and bacterial pink eye, cold compresses and preservative-free artificial tears are the go-to remedies for comfort. Both are available over the counter. The cold compress reduces inflammation and puffiness, while artificial tears help with the gritty, dry feeling. Avoid redness-relief drops that contain decongestants, as these can irritate already inflamed eyes and mask symptoms without addressing the cause.
Beyond eye drops, basic hygiene makes the biggest difference in preventing spread within your household. Wash your hands frequently, especially after touching your face. Don’t share towels, washcloths, pillows, or eye makeup. Swap to glasses instead of contact lenses until the infection clears completely. Wipe down commonly touched surfaces daily, particularly if a child in the house is infected.
Symptoms That Need Urgent Attention
Standard pink eye is uncomfortable but not dangerous. However, several other eye conditions mimic pink eye and require immediate care. If you experience significant eye pain (not just irritation), blurred vision, sensitivity to light, or a persistent feeling that something is stuck in your eye, those are red flags. These symptoms can signal conditions more serious than conjunctivitis, and waiting them out can lead to lasting damage. Seek urgent care rather than assuming it will resolve on its own.