Does pink eye need antibiotic drops in a child?

Key takeaways

Most pink eye (conjunctivitis) in children does not need antibiotic drops. Antibiotics only work on bacteria, so they do nothing for viral or allergic pink eye.
A Cochrane review of 21 trials (8,805 people) found that 55.5% of bacterial cases cleared by days 4 to 9 with placebo, against 68.2% with an antibiotic. The benefit was real but modest.
In a UK trial of 326 children, 83% were cured by day 7 with placebo drops and 86% with chloramphenicol, a difference too small to rule out chance.
Never use steroid eye drops for a red eye without an eye doctor. EyeWiki warns they can prolong a bacterial infection and make a herpes virus infection worse.
Go to a doctor today for a baby under 1 month, eye pain, light sensitivity, reduced vision, a contact lens wearer, a swollen eyelid with fever, or any red eye after an injury.

Most pink eye in children does not need antibiotic drops. Viral and allergic pink eye do not respond to them, and even in bacterial pink eye many children recover without drops, though drops can shorten it a little. What decides it is the cause, and a doctor is the person who can tell.

This page sets out the three kinds of pink eye, what the Cochrane review and a trial in children found, when drops are worth using, why steroid drops are never a home fix, and the red flags that need a doctor today. The general picture is in pink eye in children: which kind is it, and school rules are in sakit mata at tadika or taska.

What decides whether pink eye needs antibiotics?

The cause. Pink eye (conjunctivitis, or sakit mata in Malaysia) is inflammation of the clear layer over the white of the eye, and the American Academy of Ophthalmology lists three causes: a virus, bacteria or an allergy. Antibiotics only work on bacteria, so the NHS and the AAO both say they will not help a viral or allergic eye.

Viral pink eye is the most common and the most contagious. It usually brings a watery discharge and often comes with or after a cold, and the AAO says it has no treatment because the body has to fight the virus.

Allergic pink eye is very itchy, with tears and puffy lids in both eyes, and it is not contagious. Bacterial pink eye causes sore, red eyes with sticky pus, though some cases have little or no discharge. Children are more likely than adults to get the bacterial and viral kinds, because germs pass quickly between children at school and daycare.

Can I tell viral, bacterial and allergic pink eye apart at home?

Only partly. Thick yellow-green discharge points to bacteria, watery discharge with a cold points to a virus, and intense itching in both eyes points to allergy. But the signs overlap. The AAO notes some bacterial cases have little or no discharge, and a doctor usually tells the type by asking about symptoms and examining the eyes.

The practical step: write down when it started, whether there was a cold, whether it itches, and what the discharge looks like, and bring that to the visit. For the itchy kind, allergic eyes in children explains what helps, and why kids rub their eyes covers the rubbing.

What did the research find about antibiotic eye drops?

They help a little in bacterial pink eye, and most people recover without them anyway. The 2023 Cochrane review pooled 21 trials with 8,805 participants, all using drops or ointment. By days 4 to 9, 55.5% of those given placebo had cleared up on their own, against 68.2% of those given an antibiotic. Antibiotics improved clinical cure by 26% relative to placebo, and the review graded that finding as moderate certainty.

The trials in that review were mixed, and the review notes they differed in how they were run. It found no evidence of serious side effects from the drops, and its authors say antibiotics may be considered to speed recovery. They also mention growing antibiotic resistance as a reason to keep looking at other treatments.

A trial in children asked the practical question directly. In 326 children aged 6 months to 12 years in UK general practices, a clinical cure by day 7 happened in 83% given placebo drops and 86% given chloramphenicol drops, a gap small enough to be chance. The authors concluded that most children with acute infective conjunctivitis will get better by themselves and do not need an antibiotic. They also noted that one in eight schoolchildren has an episode every year, so this is a very common decision.

When are antibiotic drops worth using?

When a doctor judges the pink eye to be bacterial and the case is more than mild: thick discharge that keeps coming back, a child who is clearly sore, or no improvement after a few days. The AAO says bacterial pink eye may need antibiotic drops prescribed by a doctor, depending on how severe it is. The NHS suggests seeing a doctor if symptoms have not cleared within 7 days.

For a typical viral or mild case, comfort care is the treatment. A cool, clean, damp cloth on closed eyes and wiping crusts away with cooled boiled water on a fresh cotton pad for each eye, as the NHS suggests, and lubricating drops if a doctor agrees. Wash hands, do not share towels, and keep a bottle of drops for that child alone. Throw away drop bottles used during the infection once it clears, as the AAO advises.

The action: if the eye is only red and sticky and your child is otherwise well, wait and watch for a few days with hygiene and comfort care. If you are unsure, ask a doctor, and see getting eye drops into a small human if drops are prescribed.

Why should steroid eye drops never be used without an eye doctor?

Because a steroid can make some eye infections worse, and a red eye that looks like pink eye is sometimes something else. EyeWiki says topical steroids should be avoided in bacterial conjunctivitis because of the risk of prolonging the infection, and in herpes virus conjunctivitis because they potentiate the virus and may cause harm.

Steroid drops also reduce redness fast, which hides the very signs a doctor needs to see. Some combination drops contain a steroid alongside an antibiotic, so check the label and ask the pharmacist or doctor what is in any bottle before it goes near a child's eye. Never use an old bottle from another illness. Keeping medicines safe is covered in eye drops in the house.

Which red flags mean see a doctor today?

A baby under 1 month old with red or sticky eyes, eye pain, light sensitivity, changed or blurred vision, a contact lens wearer, a swollen red eyelid with fever, and any red eye after an injury. The AAO sums up the warning signs as redness, sensitivity to light, vision change and pain, and says two or more may need more immediate attention. The NHS treats a baby under 30 days old, pain, light sensitivity and vision changes as urgent.

The reasons differ. Newborns can get serious infections, which is why a young baby is seen the same day (a baby's first eye check). Pain, light sensitivity and reduced vision can mean the clear front of the eye is involved, not just the lining.

Contact lens wearers have a higher chance of a corneal infection, and BMJ Clinical Evidence puts bacterial keratitis at up to 30 per 100,000 lens wearers; see contact lenses for children and teens. A swollen eyelid with fever could be infection behind the eyelid, and EyeWiki says all cases of orbital cellulitis need hospital admission. A red eye after an injury needs a check for damage.

The action: if any of these is present, do not wait for a pharmacy visit or a home trial of drops. Go to a doctor or an eye casualty the same day. Sudden pain or vision loss is an emergency.

Can I buy antibiotic eye drops at the pharmacy in Malaysia?

Ask the pharmacist or doctor. This page does not state what the Malaysian rules allow, because it has not been checked against an official source. What can be said is that a drop is only useful if it matches the cause, and that a pharmacist can advise on whether a red eye needs a doctor first.

Take your child to a doctor when a baby is involved, when there is any red flag above, or when the eye has not improved in about a week. If the redness keeps coming back after the infection, styes in children and the allergy page above are the next places to look.

See a doctor today if the red eye comes with…

A baby under 1 month old (under 30 days) with red or sticky eyes.
Eye pain, sensitivity to light, or blurred or changed vision.
A swollen, red eyelid with a fever, or an eye that looks pushed forward or hurts to move.
A child who wears contact lenses.
A red eye after any injury, a splash of liquid or a foreign body, or redness that is getting worse instead of better.

Is this urgent? Today, this week or routine

Common questions

Does conjunctivitis need antibiotics?

Usually not. Antibiotic drops help only bacterial conjunctivitis, and even then most cases settle on their own. The Cochrane review found 55.5% cleared by days 4 to 9 with placebo and 68.2% with an antibiotic. Viral and allergic pink eye do not respond to them.