as per the historu you are diagnosed to have episcleritis
. Episcleritis is usually responsive to steroids
and it usually will not cause major problems. However scleritis which may resemble episcleritis is known to cause complications. Scleritis is known to be associated with some autoimmune diseases. So kindly undergo detailed evaluation and investigations to rule out scleritis. If your symptoms are not getting relieved from steroids, many other drugs like immunosuppressants can be used.