Suggest Treatment For Optic Neuritis

I was finally diagnosed with Optic Neuritis by a Neuro Opthalmologist on my right eye Nov 2013. Had Solumedrol infusion for 5 days (1 gram). The ON came back Feb 2014 and April 2014, did 3 days of Solumedrol infusion in each episode, did not help much like the first time. May 2014, had the same problem but with my left eye, now I have ON on both eyes. Right now, as I m typing I can feel the onset of another ON on my right eye. Last May, I rejected the Solumedrol treatment since it did not help much and the last time I sat doen with my Neurologist, she told me that she does not want me to do another Solumedrol treatment. From Nov 2013 to present, I ve gone through a lot of tests and all come out Negative or Normal, from blood work to rule out diseases that mimics MS, lumbar puncture, NMO Ab, Visual Evoke Potentials, MRI s with and w/o contrast. But I have tingling sensations/numbness in my 4 extremities. extreme fatigue, incontinence, ON, heat bothers me a lot, right side of my body is weaker than my left, to name a few. I am very concerned about the constant recurrence of my ON. What is wrong with me? Please help!!!!!!!