Hi CHVALENZU -- My medical costs have not been an issue because of fortunate medical insurance. No idea about other countries. That said, I have refused my eye specialist's recommendations for prednisone and methotrexate - concerns over side effects. Between 8/2015 and 12/2015 my only treatment was acupuncture twice monthly and Chinese herbs. ERGs were stable during this time. January, 2016, I started 2mg (bedtime) Low Dose Naltrexone (LDN). Symptoms are now less than half. I recently increased the dose to 3mg. It''s an inexpensive old drug (generic and off label) with almost no side effects at low dose. No research for Birdshot but often used for MS, RA, etc. Check out www.LDN2016.com for the LDN conference--12.5 hours of high level professional education for Cancers, autoimmune disorders, etc. TJ.