When it happens · 4 min read
Pink eye: is it actually contagious, and does daycare's rule make sense?
Red, goopy eyes at pickup, and now you're weighing a doctor visit against a call to daycare — and wondering whether either one actually needs to happen tonight.
"Pink eye" covers three genuinely different things, and what you're looking at tells you which.
Last updated August 9, 2026
Three different things that all look like "pink eye"
Bacterial conjunctivitis tends to bring thick yellow or green discharge, often crusting the eyes shut, especially after sleep. Viral conjunctivitis is usually milder and watery, and often shows up alongside a cold. Allergic conjunctivitis is itchy, typically affects both eyes at once, and isn't accompanied by the thick discharge of the other two — it behaves more like a seasonal allergy that happens to be in the eyes.
Most of it clears up on its own
Most children with pink eye — including many bacterial cases — get better within about 5 to 6 days without antibiotics. Antibiotic drops are still commonly prescribed for bacterial conjunctivitis, but the underlying illness is generally self-limiting either way.
The daycare rule, and what it's actually based on
Many daycares and schools use a blanket policy requiring 24 hours on antibiotic drops before a child can return. The medical reality is more nuanced: a child is typically contagious before pink eye is even noticeable, which means the exposure to other kids has usually already happened by the time the policy kicks in — the 24-hour rule mostly manages optics, not actual transmission that's already occurred.
That doesn't mean ignore your daycare's policy — it's still the rule you have to follow — but it explains why it can feel like it's not really preventing anything, because in a real sense, it often isn't.
When it's not just pink eye
Real eye pain (not just irritation), sensitivity to light, any change in vision, or swelling of the eyelid or skin around the eye — as opposed to just redness of the white part — is a different situation and needs same-day medical attention rather than home care.
Common questions
- How is pink eye spread?
- Viral and bacterial conjunctivitis both spread through contact with eye discharge — touching the eyes then touching other surfaces or people, or sharing towels and pillowcases. Allergic conjunctivitis isn't contagious at all.
- Do I need to throw out makeup or wash everything?
- Wash pillowcases, towels, and washcloths that touched the affected eye, and hand-washing is the single most effective prevention step. There's no need to discard unrelated household items.
- When can they actually go back to daycare?
- Follow your specific daycare's written policy — many require 24 hours on antibiotic drops for bacterial cases, though the medical evidence behind that exact cutoff is weaker than the rule implies.
Still not sure
This page is the general answer. Yours is a specific child.
The advisor can be. It has read everything here, and it knows how old your children actually are — which is the whole difference wherever guidance changes with age. Ask it anything.
- She's got a temperature of 100. Is that something to worry about?
- He's obsessed with space and galaxies — what toys are worth getting him?
Free. It comes with the note.
It answers from the same cited pages you are reading, and when the question is where to go, from the real clinician, hospital and childcare records behind this site — not a link to go search them yourself. It says so when we have not written about something, and it is not a doctor; for anything urgent it gives you the threshold and tells you to call.
Where this comes from
Every claim on this page traces to one of these. See every source we use →
Written from the sources named above, and it is not a substitute for your own doctor. If something feels wrong to you, that instinct is a good enough reason to call — you know yourself and this family better than any page does.