I have had burning, dry, red eye since mid Jan. Saw optometrist and told to use drops every 2 hrs (systane). Don't wear contacts til cleared up. Did that for 2 weeks. Wore contacts for 3-4 days, about 8 hrs per day. Eyes doing the same thing again. It also seems like one eye feel worse than the other. Gets a little better, then the other one does it. Dr. said it didn't look like any infection. Should I go back again, or do the drops again?