Pinkeye (Conjunctivitis)
Pinkeye (conjunctivitis) is an inflammation of the clear membrane covering the white part of the eye and inner eyelids. It's very common in children and can be caused by viruses, bacteria, or allergies. While it can look alarming, most cases are mild and clear up on their own or with treatment.
Common symptoms
- Redness in white of eye
- Increased tearing
- Thick yellow/green discharge
- Itchy or burning eyes
- Blurred vision
- Sensitivity to light
- Crusty eyelids (especially in morning)
- Swollen eyelids
Cause
Conjunctivitis can be caused by viruses (most common, often accompanies a cold), bacteria (causes thick yellow/green discharge), allergens like pollen or pet dander, or irritants like chlorine or smoke.
How common is it?
Conjunctivitis is one of the most common eye infections in children, with an estimated 3-6 million cases occurring in the U.S. annually. Viral conjunctivitis is highly contagious and spreads rapidly in childcare and school settings. Most cases resolve within 7-14 days without treatment.
Treatment
Treatment depends on the cause: viral conjunctivitis usually resolves on its own in 1-2 weeks with cool compresses for comfort; bacterial conjunctivitis may require antibiotic eye drops or ointment from a doctor; allergic conjunctivitis is treated with antihistamine eye drops and avoiding allergens.
Be ready before the next sick day
The free kit checklist that covers Pinkeye (Conjunctivitis) and the other bugs going around, so you are stocked before it hits your house.
See parent essentialsPrevention
Prevent spread by frequent handwashing, avoiding touching or rubbing the eyes, not sharing towels, washcloths, or pillows, changing pillowcases frequently during infection, and keeping children home from school until symptoms improve or as directed by a doctor.
See what's going around
Track Pinkeye (Conjunctivitis) and other illnesses at your child's school in real time.
Frequently asked questions
Pinkeye (Conjunctivitis) articles for parents
- December 2025Pink Eye Outbreak? What Chicago Parents Need to Know About ConjunctivitisPink eye is spreading in Chicago daycares. Learn the difference between viral and bacterial conjunctivitis and when your child can return to school.
- October 2025When Should Kids Stay Home from School?Guidelines to help parents make the tough call about keeping sick kids home.
- December 2025Managing School Sick Days: A Chicago Working Parent's Survival GuideWhen your child is sick and you have work, something has to give. Practical strategies for Chicago parents juggling careers and caregiving.
Related illness guides
Medical disclaimer: Educational only. Always consult a healthcare provider for diagnosis and treatment.