Common symptoms
Eye redness
Pink or red discoloration of the white part of one or both eyes
Discharge
Watery, mucous, or crusty discharge accumulating in the eye corners
Itching or burning
Persistent irritation or burning sensation in the eye
Eyelid swelling
Puffiness or swelling of the upper or lower eyelid
Light sensitivity
Discomfort or pain when exposed to bright light
Eye infections can be bacterial, viral, or allergic in origin. Bacterial conjunctivitis often produces thick, yellowish discharge, while viral conjunctivitis is more commonly associated with watery discharge and is frequently seen alongside a cold.
Bacterial infections respond to antibiotic eye drops typically within 24 to 48 hours. Viral conjunctivitis must run its course and usually resolves within one to two weeks. Allergic conjunctivitis improves when the allergen is removed.
Once symptoms resolve, the eye typically returns to normal appearance. Practicing good hygiene and avoiding rubbing the eyes helps prevent recurrence and spread to others.