Eye Flu (Conjunctivitis) Symptoms & When to See a Doctor

Medically reviewed by Dr. Santosh Sinha

Laal, paani wali aur kachri wali aankhein? Eye flu ke lakshan aur woh sanket jab doctor ke paas jaana zaroori hai.

Save karke baad mein padhein. Aapke liye pura plan neeche hai.

Author’s perspective: I want to be upfront: this is not a post that sells anything. We do not have a product for eye infections, and I do not think herbal capsules belong anywhere near an infected eye. What I can offer is clear, calm information, because eye flu season brings a lot of panic and a lot of bad advice. If this post helps even one reader avoid putting the wrong thing in their eyes, it has done its job.

What is eye flu?

“Eye flu” is the common Indian name for conjunctivitis, an inflammation of the conjunctiva. The conjunctiva is the thin, clear layer that covers the white of the eye and the inside of the eyelids. When it becomes inflamed, the small blood vessels in it swell and become more visible, which is why the eye turns pink or red.

Conjunctivitis has three main causes:

Viral: the most common cause of eye flu outbreaks. Very contagious.
Bacterial: also contagious; often produces thicker discharge.
Allergic: caused by dust, pollen, pollution or other triggers. Not contagious.

The most common eye flu symptoms

Redness in one or both eyes
Watery eyes or a constant feeling of tears
Itching or burning
A gritty feeling, as if sand or dust is in the eye
Discharge, which may be watery, sticky, or thick and yellow-green
Crusting of the eyelashes, especially on waking
Swollen eyelids
Mild sensitivity to light

Often, symptoms start in one eye and spread to the other within a day or two.

How the different types usually look

Feature	Viral	Bacterial	Allergic
Discharge	Watery	Thick, sticky, yellow or green	Watery, stringy
Itching	Mild	Mild	Strong
Both eyes	Often, one after another	Often	Usually both at once
Other signs	Cold, sore throat, swollen glands near ear	Lids stuck together in the morning	Sneezing, runny nose
Contagious	Yes, very	Yes	No

These are general patterns, not rules. Only a doctor can reliably tell the types apart.

How long do symptoms last?

Viral conjunctivitis often improves within one to two weeks, sometimes longer.
Bacterial conjunctivitis may improve within a few days, faster with appropriate treatment prescribed by a doctor.
Allergic conjunctivitis lasts as long as exposure to the trigger continues.

Why eye flu spreads quickly

Viral and bacterial conjunctivitis spread through:

Touching your eyes after touching contaminated surfaces
Sharing towels, pillows, handkerchiefs or eye makeup
Close contact with an infected person
Crowded places such as markets, offices and public transport

Humid, rainy weather and busy festival markets create ideal conditions for spread.

Safe home care

Wash your hands often with soap and water, especially after touching your eyes.
Clean discharge gently using clean, lukewarm water and a fresh cotton pad. Use a separate pad for each eye and throw it away after one use.
Cool compresses can soothe itching and swelling.
Do not rub your eyes.
Use your own towel and pillowcase, and wash them often in hot water.
Avoid contact lenses until your eyes are fully healthy, and discard lenses worn during the infection.
Avoid eye makeup and throw away any used during the infection.
Rest your eyes and reduce screen time.
Wear sunglasses outdoors if light feels uncomfortable.

What not to do

Do not use steroid eye drops or any eye drops without a doctor’s prescription. Steroid drops can worsen some infections and cause serious complications, including raised eye pressure.
Do not put herbal powders, capsule contents, Triphala, honey, breast milk, rose water from unknown sources or any home mixture into the eye.
Do not share eye drops with anyone.
Do not cover the eye with a tight bandage, which can trap germs.

When to see a doctor

See a doctor within one to two days if you have:

Eye pain (not just irritation)
Any change or blurring of vision that does not clear on blinking
Strong sensitivity to light
Thick discharge that keeps coming back
Symptoms that worsen after a few days or do not improve within a week
A weakened immune system, diabetes, or recent eye surgery
Contact lens use with red, painful eyes (this can signal a more serious corneal infection)

Seek urgent care if there is an injury, chemical splash, severe pain, or sudden loss of vision.

Not every red eye is eye flu. Dry eye, allergies, pollution irritation, a scratch on the cornea, or more serious conditions such as uveitis or acute glaucoma can also cause redness. Our post on dry eyes and screen strain covers one of the most common look-alikes.

Aur padhein

Official jaankari: NHS: Conjunctivitis (eye infection)

Frequently asked questions

Can you catch eye flu by looking at someone?

No. It spreads through contact with discharge, hands and shared objects, not by eye contact.

Is eye flu dangerous?

Most cases are mild and settle on their own. However, warning signs like pain, vision change or light sensitivity need a doctor’s check.

Should I go to work with eye flu?

If it is viral or bacterial, it is best to stay home while symptoms are active, especially if your work involves close contact with others.

Can I use sunglasses to prevent spread?

Sunglasses can help with light sensitivity and remind you not to touch your eyes, but they do not stop spread. Handwashing does.

The bottom line

Eye flu usually causes redness, watering, itching and discharge, and most cases settle within one to two weeks. Keep your hands clean, keep your towels separate, and resist the urge to put anything in your eyes that a doctor has not prescribed. If you have pain, vision changes or light sensitivity, see a doctor promptly.

Disclaimer: This article is for general information and is not medical advice. Please consult an eye doctor or physician for diagnosis and treatment. This article is written for adults; for children, consult a paediatrician.

Eye Flu (Conjunctivitis) Symptoms: Red Eyes, Discharge and When to See a Doctor