Pink eye — medically known as conjunctivitis — is one of the most common acute conditions treated in New York City’s urgent care system, and it spikes every spring when allergic conjunctivitis peaks alongside seasonal pollen. But not all pink eye is the same, and treating the wrong type with the wrong approach — or rushing to urgent care for a condition that resolves on its own — is both common and avoidable.
This guide explains how to distinguish the three main types of pink eye, what each requires for treatment, why spring increases your risk, and when a Sickday clinician can evaluate and treat you at home.
The Three Types of Pink Eye
1. Viral Conjunctivitis
The most common type. Usually caused by adenovirus — the same family of viruses responsible for many respiratory infections. Highly contagious, spreads easily through hand-to-eye contact and shared items. Classic presentation: red, watery, itchy eyes, often with a clear or slightly mucoid discharge. Frequently accompanies or follows an upper respiratory infection. Does not respond to antibiotic eye drops. Resolves on its own in 1–2 weeks. Treatment is supportive: cool compresses, artificial tears, strict hand hygiene.
2. Bacterial Conjunctivitis
Less common in adults than viral conjunctivitis, but more common in children. Classic presentation: thick, purulent (yellow-green) discharge that crusts the eyelid shut overnight. More likely to affect only one eye initially. Caused by Staphylococcus aureus, Streptococcus pneumoniae, Haemophilus influenzae, or other bacteria. Responds to antibiotic eye drops (typically tobramycin, erythromycin, or fluoroquinolone drops). Usually clears within 3–5 days of treatment. Prescription required — this is one situation where a house call or telemedicine visit meaningfully shortens illness duration.
3. Allergic Conjunctivitis
Caused by allergen exposure — tree pollen, pet dander, dust mites. Not contagious. Classic presentation: intense itching (the defining feature), bilateral redness, watery discharge, often with nasal allergy symptoms present simultaneously. Peaks with allergy season — April through June in NYC for tree and grass pollen. Responds to antihistamine eye drops (OTC: olopatadine/Pataday, ketotifen/Zaditor) and oral antihistamines. Prescription mast cell stabilizer drops or steroid eye drops for severe cases.
How to Tell Them Apart
| Feature | Viral | Bacterial | Allergic |
|---|---|---|---|
| Discharge type | Watery/clear | Thick, yellow-green | Watery |
| Itching | Mild | Minimal | Intense (defining feature) |
| One or both eyes | Usually starts unilateral | Often unilateral | Always bilateral |
| Associated symptoms | Cold, sore throat | None typical | Sneezing, nasal congestion |
| Contagious | Highly contagious | Contagious | Not contagious |
| Antibiotic treatment | Not helpful | Required | Not applicable |
Why Spring Increases Pink Eye Risk in NYC
Spring brings two converging pink eye risk factors to New York City. First, tree and grass pollen levels peak in April through June, driving a significant increase in allergic conjunctivitis cases. Second, spring typically brings an uptick in viral respiratory illness — including adenovirus — as people gather indoors during transitional weather and immune function fluctuates with seasonal changes. The result is a predictable spring surge in conjunctivitis presentations at urgent care centers across the city every year.
When Prescription Treatment Is Needed
- Bacterial conjunctivitis: Antibiotic eye drops significantly shorten illness duration and are required for proper treatment. A clinician visit is necessary to obtain a prescription.
- Severe allergic conjunctivitis: Cases not controlled by OTC antihistamine drops may require prescription mast cell stabilizer drops (olopatadine prescription strength, nedocromil) or a short course of steroid eye drops.
- Contact lens wearers: All contact lens wearers with conjunctivitis should discontinue lenses and seek clinical evaluation — the risk of corneal complications is higher in this population.
- Pink eye with significant pain: Conjunctivitis is uncomfortable but shouldn’t be severely painful. Significant eye pain with light sensitivity may indicate something more serious — corneal involvement, iritis, or another condition requiring urgent evaluation.
- Newborns and infants: Any conjunctivitis in a newborn requires prompt medical evaluation.
Treating Pink Eye at Home
For viral conjunctivitis (which doesn’t require prescription treatment) and mild allergic conjunctivitis, home management includes:
- Warm or cool compresses (whichever is more comfortable) applied to closed eyes for 5–10 minutes several times daily
- Artificial tears to relieve dryness and flush the eye surface
- OTC antihistamine eye drops for allergic type (olopatadine/Pataday or ketotifen/Zaditor/Alaway)
- Strict hand hygiene to prevent spreading (viral conjunctivitis is highly contagious)
- Avoid touching or rubbing eyes
- Don’t share towels, pillowcases, or eye makeup during active infection
- Avoid contact lenses until fully resolved
Getting a Pink Eye Prescription at Home in NYC
If you have signs of bacterial conjunctivitis — thick yellow-green discharge, crusted eyelids — or a severe allergic presentation not responding to OTC drops, a Sickday clinician can evaluate your eyes at home, determine the type of conjunctivitis, and prescribe appropriate eye drops electronically to your preferred pharmacy. This saves a trip to urgent care and avoids sitting in a waiting room with a contagious eye infection.
Frequently Asked Questions
Is pink eye contagious at school or work?
Viral and bacterial conjunctivitis are contagious until discharge resolves. Most school policies require students to be treated and discharge-free before returning. Adults with bacterial conjunctivitis should use judgment about close-contact work settings. Allergic conjunctivitis is not contagious.
How long does pink eye last?
Viral conjunctivitis: 1–2 weeks. Bacterial conjunctivitis with antibiotic treatment: 3–5 days. Allergic conjunctivitis: persists throughout allergen exposure; controlled with antihistamine drops and allergen avoidance.
Can a Sickday clinician diagnose pink eye at home?
Yes. Conjunctivitis is typically diagnosable on clinical examination. Our clinicians assess discharge character, bilateral vs. unilateral presentation, presence of itching, and associated symptoms to determine the type and appropriate treatment — all at your home.
