I have had both Episcleritis and Scleritis. Mine started a little over a year ago, with Episcleritis in both eyes. I tried several drops--Tobradex, Fluromethalone, Prednisolone--and they would help, but then a few months ago, my left eye got really bad and the doctor said it was now Scleritis.
I am currently on Prednisone and Methotrexate, to help with the inflammation. I also am using Acular eye drops for the pain, as needed.
My heart goes out to you because both conditions are very painful and even when mine seemed to be going away, it always came back. In fact, after having Episcleritis for about 6 months, I went to see my Internist and she immediately suspected Crohn's. I was just diagnosed a few weeks ago (long story).
I have noticed a link now to my eyes and my stomach issues. Before I had even heard of Crohn's, I remember last summer, when both my eyes were bad, having bad stomach problems, but I always thought it was something I ate or a nerves, etc.
Please keep us posted and please feel free to ask me anything.