How long does a pinkeye remain contagious after treatment?

Usually 48 hours. The most critical time is the first 48 hours after treatment, but the answer can vary based on continued symptoms or discharge. Use precautions until all symptoms are resolved. Remember to avoid contact lens use during this period also.
Until eye is clear. Antibiotics are usually prescribed for pink eye, but many cases are viral which is not affected by antibiotics. Therefore, it is best to wait until the eye discharge has resolved before sending a child back to school. Adults can return to work within a few days. Hand hygiene is always important.