I was given Tobradex in the past for Giant Papillary Conjunctivitis, with quick relief from the symptoms. I was diagnosed with a mild form of GPV this week and prescribed neo-poly-dex. After taking it for almost 2 days the symptoms seem to be unchanged. Would switching to Tobradex be an option at this time, if my opthamologist concurs? Also, how long do the neo-poly-dex drops need to be in place per dosage- Is it OK to flush the treated eye w/saline after 1.5-2 hrs.? By then the drops have hardened and irritate my eye.