This is Part 4 of our five-part Back-to-School Health Series for NYC families. Catch up on School Physicals, Sports Physicals, and 2026 Immunizations. Up next: the back-to-school mental health transition. Today: the bugs that sweep through classrooms every fall.
School Starts, and So Does Germ Season
Put two dozen kids in a room, add shared desks, water fountains, and not-quite-thorough handwashing, and you get the annual surge of strep throat, head lice, pink eye, and hand-foot-and-mouth disease. Most are more nuisance than danger — but each has its own rules for treatment and, crucially, for when a child can go back to class. This guide covers the four most common ones: how to spot them, how long to stay home, and when to walk in.
Strep Throat
A sore throat is usually a virus that resolves on its own. Strep is the bacterial exception that needs antibiotics — both to shorten the illness and to prevent rare complications like rheumatic fever.
Points toward strep (not just a cold):
- Sudden sore throat with pain on swallowing
- Fever, often 101°F or higher
- Swollen, tender glands in the neck; white patches on the tonsils
- Headache, stomachache, or a fine sandpaper-like rash (scarlet fever)
Points away from strep (more likely a virus):
- Cough, runny nose, hoarseness, or pink eye alongside the sore throat
A quick throat swab settles it. We do rapid strep testing on-site, usually with results in minutes, and can start antibiotics the same visit if it’s positive.
Back to school: after at least 12–24 hours on antibiotics and fever-free without fever-reducing medicine.
Head Lice
Lice are the great equalizer — they have nothing to do with cleanliness and spread through head-to-head contact, which is exactly what happens at recess and sleepovers. They’re maddening but medically harmless.
- What you’ll see: intense scalp itching, tiny tan-to-grayish insects, and oval eggs (nits) glued to hairs near the scalp — most often behind the ears and at the nape of the neck.
- Nits vs. dandruff: nits stick fast and can’t be flicked off; dandruff brushes away easily.
- Treatment: over-the-counter medicated shampoos work for most cases, paired with fine-comb removal. Stubborn or repeated infestations sometimes need a prescription product — we can sort out which you need.
Good news on the school front: the American Academy of Pediatrics recommends against “no-nit” exclusion policies. A child with lice can generally finish the school day and return after the first treatment — lice are a hassle, not a reason to miss class.
Pink Eye (Conjunctivitis)
Pink eye spreads fast in classrooms because kids rub their eyes and touch everything. It comes in three flavors, and they’re managed differently:
| Type | Telltale signs | Treatment |
|---|---|---|
| Viral | Watery discharge, often with a cold; very contagious | Usually clears on its own; comfort care |
| Bacterial | Thick yellow-green discharge; lids stuck shut in the morning | Antibiotic eye drops |
| Allergic | Both eyes itchy and watery; not contagious | Antihistamine/allergy drops |
A provider can usually tell the types apart on a quick exam.
Back to school: policies vary, but children are generally cleared once there’s no more thick discharge, or after 24 hours of antibiotic drops for the bacterial type. Allergic pink eye isn’t contagious at all.
Hand-Foot-and-Mouth Disease
Common in younger kids and daycares, this virus causes a few miserable days but rarely anything serious.
- What you’ll see: fever and sore throat first, then small painful mouth sores and a rash or tiny blisters on the hands, feet, and sometimes the buttocks.
- Treatment: there’s no specific cure — it runs its course in 7–10 days. The priority is comfort and, above all, keeping fluids going, since mouth sores make kids reluctant to drink.
- Watch for dehydration: very few wet diapers or bathroom trips, no tears when crying, dry mouth, or unusual sleepiness.
Back to school: generally once the fever is gone and the child feels well enough to participate, even if some spots remain. Follow your daycare or school’s specific policy.
When to Walk Into Urgent Care
Most of these clear up at home, but come in if you see:
- A sore throat with fever and no cold symptoms (let’s test for strep)
- Eye redness with thick discharge, eye pain, or vision changes
- A rash you can’t identify, or one that’s spreading or blistering badly
- Signs of dehydration during hand-foot-mouth or any illness
- A fever that won’t break, or a child who seems markedly unwell or lethargic
Go to the ER (or call 911) for:
- Trouble breathing, drooling with inability to swallow, or a muffled “hot potato” voice
- A stiff neck with fever, severe headache, or a rash that doesn’t fade when pressed
- Signs of severe dehydration — no urination, sunken eyes, extreme lethargy
- A seizure, or a child who is difficult to wake
Five Habits That Cut Down the Germ-Swapping
- Handwashing — 20 seconds, before eating and after the bathroom. The single biggest lever.
- Don’t share hats, brushes, water bottles, or headphones.
- Cover coughs into the elbow, not the hand.
- Keep sick kids home when they’re feverish or actively contagious — it shortens the chain.
- Stay current on the flu shot and required vaccines (see Part 3).
Frequently Asked Questions
Do you do rapid strep tests?
Yes — on-site, usually with results in a few minutes. If it’s positive, we can start antibiotics the same visit.
How soon can my child go back to school after strep?
Generally after at least 12–24 hours on antibiotics and once they’ve been fever-free without medication. They’ll feel noticeably better within a day or two of starting treatment.
Can urgent care treat lice?
We can confirm it’s actually lice (not dandruff or residue), recommend the right product, and prescribe a stronger treatment if over-the-counter options have failed.
Is pink eye always contagious?
No. Viral and bacterial pink eye are contagious; allergic conjunctivitis is not. A quick exam usually tells which one you’re dealing with.
My child has hand-foot-mouth. Do they need antibiotics?
No — it’s a virus, so antibiotics don’t help. Care focuses on comfort and fluids. Come in if you’re worried about dehydration or the diagnosis isn’t clear.
Coming Up in Part 5
The finale: Kids & Back-to-School Mental Health — Anxiety, Sleep, and the Transition. The start of school is a big emotional adjustment. We’ll cover what’s normal, what’s not, and how to help.
Something Going Around the Classroom? Walk In.
Sore throat, runny eye, mystery rash, or a fever that won’t quit — walk into any AG Urgent Care location in Brooklyn or Queens for same-day evaluation, on-site rapid testing, and a clear plan to get your child back to class. No appointment needed, most insurance accepted, evening and weekend hours.
Can’t get out the door with a sick kid? Our telehealth visits can handle many of these from home. Or visit our Bushwick, Flatbush Junction, Brownsville, Canarsie, or Jamaica, Queens location, or check in online to save your spot.
Medical Disclaimer: This article is for informational purposes only and is not a substitute for medical advice, diagnosis, or treatment from a qualified healthcare provider. School return policies vary; confirm with your child’s school. Always seek the advice of your physician or other qualified clinician about your child’s health. In a medical emergency, call 911 or go to the nearest emergency department.