When was the surgery? what preservative free tears have you used? why did you not do the plug?
you can try something called Refresh Celluvisc every 1-2 hours, this is by far better than anything you listed and tried. The plug works wonderfully in my opinion and can work as well as Restasis in someone like you. Regards XXXXX XXXXX
Celluvisc is over the counter indeed, the plug typically lasts a couple of years, can easily be removed if it is bothersome, I would recommend it, Dr. Stevens