A viral or bacterial infection can cause conjunctivitis. It can also develop due to an allergic reaction to air irritants such as pollen and smoke, chlorine in swimming pools, ingredients in cosmetics, or other products that contact the eyes, such as contact lenses.
Subsequently, one may also ask, how long does conjunctivitis take to go away?
If your pink eye is caused by a common viral infection and no other complications occur, then your eyes should clear up within a few days to two weeks. Pink eye also can be caused by bacterial conjunctivitis, which — even with treatment such as prescription antibiotic eye drops — can last up to a month or longer.
Can you send your child to school with conjunctivitis?
You do not need to keep your child out of school or day care for that whole time. Children with bacterial pink eye may return to school or day care 24 hours after starting eye drops or ointment. Children with allergic pink eye are not contagious. Your child may still go to school or day care.
How do you spread conjunctivitis?
Viral conjunctivitis is highly contagious. Most viruses that cause conjunctivitis spread through hand-to-eye contact by hands or objects that are contaminated with the infectious virus. Having contact with infectious tears, eye discharge, fecal matter, or respiratory discharges can contaminate hands.