How long is pink eye contagious after starting antibiotic?

Viral or bacterial? If your pink eye issue to a bacterial infection, you should no longer be considered contagious after 24-48 hours after starting the antibiotic drops. If, however, your pink eye is due to viral infection, you are likely to be contagious for as long as you are having symptoms.
During symptoms. Because pink eye is usually viral and not bacterial antibiotics actually will do nothing to help with the pink eye. For that reason you are contagious the entire time you are symptomatic regardless of if you are taking antibiotics or not.

Related Questions

How long is pink eye contagious when using an antibiotic?

Discharge. You are contagious as long as you have any discharge, even with antibiotic ointment or drops. Don't touch or rub your eyes. Use a tissue to clear away any discharge, throw the tissue away, and wash your hands. When you wash your face and eyes, use a white hand towel to dry then bleach the towel. Change and wash your pillow cases daily. Sanitize your door knobs and purse to help prevent reinfection. Read more...

How long after starting antibiotic is pink eye contagious?

It Depends. If the pink eye is caused by bacteria and the drops have effective antibiotics, then it is thought 24-48 hrs eliminates the contagion. Since the drops are ineffective for viral pink eye, as long as the eye is red, the infection is probably contagious. Read more...
10-14 days. Use of antibiotics does not shorten the contagious stage, the drops shorten the time you have to deal with goopy eyes. Read more...