Conjunctivitis (Red or Sticky Eye): symptoms, self-care and when to get help

Checked against current published health guidance — last reviewed 2026-09-23. See how we check.

Conjunctivitis causes red, itchy, or sticky eyes and is usually due to a viral or bacterial infection, or an allergy, often clearing on its own within one to two weeks. Eye pain, vision changes, or sensitivity to light need same-day assessment to rule out something more serious.

Overview

Conjunctivitis is inflammation of the thin layer covering the white of the eye and inner eyelid, causing redness, itching, watering, or a sticky discharge. It's common, especially in children, and usually not serious.

Viral and allergic conjunctivitis are the most common types; bacterial conjunctivitis tends to cause a thicker, yellow-green discharge and can be more contagious.

What may help

When to see a pharmacist or GP

When it could be an emergency

If any of these apply, don't wait — call your local emergency number (see emergency numbers by country, or Red Flags in the app), or go straight to your nearest emergency department.

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Common questions

Is conjunctivitis contagious?

Viral and bacterial conjunctivitis can spread easily through contact, especially in children; allergic conjunctivitis isn't contagious.

Can I wear contact lenses with conjunctivitis?

It's best to avoid contact lenses until symptoms have fully cleared, and to get advice from a pharmacist, optometrist, or GP first.

Should a child with conjunctivitis stay off school?

Many schools don't require exclusion for conjunctivitis alone, but check your school's specific policy and practise good hand hygiene regardless.

How long does conjunctivitis last?

It usually gets better on its own within 1 to 2 weeks.

Do I need antibiotic eye drops?

Often not. A pharmacist can advise, and antibiotic drops may be recommended for some bacterial infections.

Official sources

Hay Fever

Symptoms, self-care, and when to seek help.

Common Cold

What's normal, self-care, and when to get checked.

Eczema

Triggers, skincare routine, and when to seek help.

Fever in Children

Safe self-care and warning signs to watch for.

General information only, last checked 2026-09-23 — not medical advice and not a diagnosis. This page doesn't cover every cause or every person's situation; for anything specific to you or someone in your care, speak to a pharmacist, GP, or other qualified professional. See how we check. Be Health Wise is part of the Be Wise family of apps.