### Human:\nhow long should we usesulfacetamide sodium ophthalmic\n\n### Assistant: i assume you are treating pink eye (conjunctivitis). the course of therapy can be anywhere from 5-10 days depending on the severity and response to this antibiotic. a good "average" would be a week but it is best to use it for a day or two longer than it takes your problem to completely resolve. this stuff tends to burn so my heart goes out to you.