Last updated: 7 November 2026
Written by the Vision Plus clinical content team, medically reviewed by Dr. Ritu Aurora, November 2026
"Eye flu" is conjunctivitis, inflammation of the thin clear layer covering the white of the eye. Most cases in Delhi NCR are viral, spread easily by hands and shared items, and clear in one to two weeks without antibiotics. Wash hands often, do not rub the eyes, and see a doctor if there is pain, reduced vision or you wear contact lenses.
What are the symptoms?
The eye turns red or pink, feels gritty, waters, and may stick shut in the morning. One eye usually starts first and the other follows within days.
Severe pain, strong light sensitivity or blurring points to something else, such as a corneal infection or inflammation inside the eye, and needs urgent care.
Which type is it?
Three common causes look alike but are managed differently.
| Type | Typical signs | Contagious? | Treatment |
|---|---|---|---|
| Viral (often adenovirus) | Watery discharge, gritty, with cold or sore throat | Highly | Supportive care; lasts 1 to 2 weeks |
| Bacterial | Thick yellow or green sticky discharge | Yes | Antibiotic drops prescribed by a doctor |
| Allergic | Intense itching, both eyes, stringy discharge, sneezing | No | Allergy drops, avoid triggers |
Read more on our pages for conjunctivitis and allergic conjunctivitis .
How is it treated?
Treatment depends on the cause. For viral conjunctivitis, cold compresses, clean tissue and preservative-free lubricating drops ease symptoms while the body clears the virus. Antibiotic drops do not work against viruses; they are used when bacteria are likely. Steroid drops are sometimes needed in particular cases but must never be started without an eye examination, because they can worsen certain infections and raise eye pressure.
Pharmacy mixtures of antibiotic and steroid, used without advice, are a common reason for complications. Please avoid them.
How long does it last, and when can I go back?
Viral conjunctivitis typically settles in one to two weeks, although the eye can stay contagious while it is red and watering. Many doctors advise staying away from school and work until the discharge and watering have largely stopped, commonly about five to seven days. Bacterial infections improve within a few days of the right drops.
Preventing the spread
Hands carry most of the infection. These steps help families, offices and schools:
| Do | Avoid |
|---|---|
| Wash hands with soap for 20 seconds, often | Touching or rubbing the eyes |
| Use your own towel, pillowcase and handkerchief | Sharing towels, make-up or eye drops |
| Wipe phones, remotes and door handles | Handshakes and hugs while symptomatic |
| Discard used tissues in a closed bin | Swimming pools |
| Switch from contact lenses to glasses | Wearing lenses until fully cleared |
Two common myths: looking into an infected person's eye does not spread eye flu, and dark glasses do not stop it spreading, although they help with light discomfort.
Noida note: Eye flu surges in the monsoon, from July to September, and spreads quickly through schools, offices and housing societies across Noida and Ghaziabad. If a child in Sector 137 or Gaur City has it, keep them at home for the infectious days and tell the school, so that others can be watched too.
When to see a doctor
- Eye pain, not just irritation
- Light sensitivity or blurred vision
- You wear contact lenses
- A newborn with red or sticky eyes
- Redness after an injury or surgery
- No improvement after a week, or worsening
- Diabetes or low immunity
Cost of seeing a doctor
A basic eye consultation in Noida typically costs Rs 500 to 1,000, and a complete dilated check-up Rs 1,000 to 2,500. This is an indicative range; the final amount depends on the tests needed.
Frequently asked questions
How long does eye flu last?
Viral conjunctivitis usually lasts one to two weeks, peaking in the first three to five days. Bacterial cases improve within a few days of the right drops. Allergic conjunctivitis lasts as long as the trigger. If it worsens or lasts beyond two weeks, get an eye examination.
Is eye flu contagious and how do I prevent it?
Viral and bacterial types are contagious, mainly through hands and shared items. Wash hands often, avoid rubbing eyes, keep towels and make-up separate, and stay home until the discharge settles. Allergic conjunctivitis is not contagious. A doctor can tell which type you have.
Which eye drops should I use for eye flu?
It depends on the cause, so do not self-medicate. For viral eye flu, lubricating drops and cold compresses are the mainstay. Antibiotic drops are only for bacterial infection. Avoid steroid or mixed drops from a chemist unless an eye doctor has examined you.
Where can I see an eye doctor for red eyes in Noida?
Vision Plus Eye Centre has centres in Sector 51 (Kisan Tower) and Gaur City-1, Greater Noida West. Call +91 8800313134 to book. See Dr. Ritu Aurora , or read our guide on how often to get an eye check-up .
Book an eye examination
Call or WhatsApp +91 8800313134 for appointments, or +91 9717417417 for eye surgery consultation. Email wecare@visionplus.net.in. Visit us at Sector 51 (Kisan Tower) or Gaur City-1; hours are on the contact page . Prices reviewed: November 2026. For more on the season, see pollution and your eyes .
Medically reviewed by Dr. Ritu Aurora, November 2026