Pink Eye in Babies

Newborn pink eye is different — and urgent

A baby in the first weeks of life with a red eye, swollen eyelids, or thick discharge should be seen by a doctor right away. Infections passed during birth — including chlamydia, gonorrhea, and herpes — can cause serious eye infection in a newborn.

Untreated, these can damage the cornea (the clear covering of the eye) and, in rare cases, lead to a body-wide infection, meningitis, or vision loss. Chlamydia is the most common cause of pink eye in infants younger than 20 days old. This is why hospitals routinely apply antibiotic eye ointment at birth.

Do not wait it out or treat a newborn's eye at home. For a baby in the first weeks of life, any eye redness or discharge is a reason to call your pediatrician promptly.

Types of pink eye in babies

How the common types differ. Your pediatrician confirms the cause and the right treatment.

Type	How it looks	Contagious?	Usual treatment
Viral	Pink, watery eye, often with a cold; may be light-sensitive	Yes	None needed; usually clears in about 1 to 2 weeks. Antibiotics do not help.
Bacterial	Thicker yellow or green discharge; lids may be crusted or stuck shut in the morning	Yes	May need antibiotic drops or ointment; many cases also clear on their own. Pediatrician decides.
Allergic	Both eyes itchy, red, watery; often with sneezing or a runny nose	No	Treat the allergy; antibiotics are not used.
Blocked tear duct	Watery, goopy eye without the redness of true infection; common in newborns	No	Often clears by age 1; gentle tear-duct massage as shown by your doctor.

When antibiotic drops are needed

Antibiotics treat bacteria, so they do nothing for viral or allergic pink eye. Viral pink eye runs its course, and allergic pink eye is managed with allergy care.

Even many bacterial cases improve on their own — the AAP notes most children with pink eye get better within 5 to 6 days without antibiotics, and antibiotics shorten things only a little. Your pediatrician examines the eye and weighs the discharge and symptoms before deciding whether drops or ointment are worth it. Do not use leftover or borrowed eye drops; let your pediatrician choose the treatment.

Home care for a mild case

For an older baby with a mild, non-newborn case, these comfort steps help while it clears.

• Wipe away discharge with a clean, damp cloth or cotton ball, using a fresh one for each eye.
• Use a cool or warm compress to ease discomfort.
• Wash your hands before and after touching your baby's face or eyes.
• Do not share towels, washcloths, or pillows, and wash used items in hot water.
• Skip contact with leftover drops, and do not put anything in the eye unless your pediatrician advises it.

Keeping it from spreading

Viral and bacterial pink eye spread through contact with eye discharge, directly or by touching surfaces, so frequent hand washing is the single best way to limit spread. Allergic pink eye and a blocked tear duct are not contagious.

For daycare, many programs follow a policy that a child can return 24 hours after starting antibiotic drops for bacterial pink eye; bacterial cases are generally no longer contagious 24 to 48 hours after antibiotics begin. Check your specific daycare's policy, since rules vary.

Reflects AAP HealthyChildren, Nemours KidsHealth, and American Academy of Ophthalmology guidance on pediatric conjunctivitis, 2024-2026.

Related questions

How can I tell pink eye from a blocked tear duct in my baby?

A blocked tear duct causes a watery, sometimes goopy eye and crusting on the lashes, but without the true redness of infection, and it is very common in newborns. Pink eye involves a genuinely red or pink eye. A blocked duct usually clears by age 1 with gentle massage; if it becomes red, swollen, or develops yellow-green discharge, call your pediatrician.

Does my baby need antibiotic eye drops for pink eye?

Not usually. Viral and allergic pink eye do not respond to antibiotics, and even many bacterial cases clear on their own within about a week. Your pediatrician examines the eye and decides whether antibiotic drops or ointment are worthwhile. Do not use leftover drops on your own.

When can my baby go back to daycare with pink eye?

It depends on the cause and your daycare's policy. Many programs allow a return 24 hours after starting antibiotic drops for bacterial pink eye, and bacterial cases are generally no longer contagious 24 to 48 hours after antibiotics begin. Allergic and blocked-tear-duct cases are not contagious. Confirm with your daycare.

Why is pink eye in a newborn an emergency?

In the first weeks of life, eye infection can come from bacteria or viruses passed during birth, such as chlamydia, gonorrhea, or herpes. Without prompt treatment these can damage the cornea or, rarely, cause a serious body-wide infection or vision loss. Any red or goopy eye in a newborn should be seen by a doctor right away.

Sources & further reading

1. AAP HealthyChildren — Pinkeye (Conjunctivitis)
2. AAP HealthyChildren — Erythromycin Eye Ointment for Newborn Pinkeye
3. Nemours KidsHealth — Conjunctivitis (Pink Eye) in Kids
4. Nemours KidsHealth — Tear-Duct Blockage
5. American Academy of Ophthalmology — Pink Eye in Babies and Infants

This article reflects current AAP, CDC, FDA, and other public-health guidance and is for educational purposes only. It does not constitute medical advice. ParentFlow is a wellness companion — not a substitute for your pediatrician. For any medical concern, contact your healthcare provider.