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Worried about conjunctivitis?

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This page summarises publicly available NHS information for educational purposes only. It is not medical advice or a diagnosis. Always consult a qualified healthcare professional.

What is conjunctivitis?

Conjunctivitis is inflammation of the thin layer covering the white of the eye and inside of the eyelids. It causes red, itchy, watery eyes and sometimes sticky discharge. It's usually caused by a virus, bacteria, or an allergy. Most cases clear up on their own within 1 to 2 weeks without treatment, but some need antibiotic drops or antihistamines depending on the cause.

When NHS resources suggest seeing a GP

  • Your baby has red, sticky eyes – get an urgent appointment if your baby is less than 30 days old.
  • You wear contact lenses and have conjunctivitis symptoms as well as spots on your eyelids – you might be allergic to the lenses.
  • You have conjunctivitis and your symptoms have not cleared up within 7 days.
  • Pain in your eyes.
  • Sensitivity to light.
  • Changes in your vision, like wavy lines or flashing.
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Self-care information from NHS

  • Wash your eyelids with clean water. Boil the water and let it cool down, then gently wipe your eyelashes with a clean cotton wool pad to clean off crusts (1 piece for each eye).
  • Hold a cold flannel on your eyes for a few minutes to cool them down.
  • Do not wear contact lenses until your eyes are better.
  • Wash your hands regularly with warm soapy water.
  • Wash your pillow cases and face cloths in hot water and detergent.
  • Cover your mouth and nose when sneezing and put used tissues in the bin.
  • Do not share towels and pillows.
  • Do not rub your eyes.

Common questions

Is conjunctivitis contagious?

Viral and bacterial conjunctivitis are highly contagious — spread through touch and shared towels or pillows. Allergic conjunctivitis is not contagious. Wash hands often, avoid touching eyes, and don't share face cloths or eye makeup.

How long does conjunctivitis last?

Most conjunctivitis clears within 1 to 2 weeks. Bacterial cases often improve within a few days of starting antibiotic drops. Allergic conjunctivitis lasts as long as you're exposed to the allergen.

When should I see a GP for conjunctivitis?

See a GP or optician if symptoms don't improve after a week, pain is severe, vision changes, or if a baby under 30 days old develops red, sticky eyes — this can be serious in newborns.

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This page is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about your individual situation. NorMed organises publicly available NHS information and is not affiliated with the NHS.