Pink eye treatment: when are antibiotics used?

Pink eye, also called conjunctivitis, can result from infection, allergy, dryness, or irritation. A clinician considers the type of discharge, how quickly symptoms appeared, whether one or both eyes are affected, and whether there is itching, pain, or light sensitivity. Thick or sticky discharge can occur with bacterial infection, but discharge alone cannot identify the cause. Antibiotic drops or ointment may be prescribed when bacterial infection is suspected; using leftover medicine can irritate the eye and may delay the right care.

Wash your hands before and after touching the eye, gently clean away discharge with clean water and a fresh cloth, and avoid rubbing. Do not share towels, pillows, cosmetics, or eye drops. Stop wearing contact lenses until symptoms have settled and a clinician says they are suitable again. If antibiotics are prescribed, use them exactly as directed and do not share them. Lubricating drops or a cool compress may ease irritation when appropriate.

Arrange a GP consultation if symptoms are worsening, do not start improving, keep returning, or you are unsure whether treatment is needed. Seek urgent eye care for significant eye pain, marked light sensitivity, reduced or blurred vision that does not clear with blinking, an eye injury, or swelling around the eye. Contact-lens wearers should seek prompt advice because infection can involve the cornea.

Ask which type of pink eye is most likely, whether an antibiotic is appropriate, how long to use it, and when contact lenses or eye cosmetics can be restarted. Mention allergies, recent eye injury, contact-lens use, and any change in vision.