Suggest Treatment For Dry Eyes And Blocked Eye Glands

I HAVE SEVERE DRY EYES AND BLOCKED EYE GLANDS CAUSED BY FOOD ALERGIES AND MAYBE A WEAK IMUNE SYSTEM. THE DRY EYES CAUSE UNSTABLE VISION. NOTHING ON THE MARRKET HAS HELPED AND MY DR PRESCRIBED ORACEA CAPSULES. WHAT IS YOUR OPINION ON THIS DRUG FOR MY DRY EUES.