I just heard a story on National Public Radio that there are now clinical trials for MS drugs being conducted in India (China, too) by Biogen Idec, one of the drug manufacturers. You might ask around or check the clinicaltrials.gov website.
If you read the headlines you know what a mess we are in here with healthcare costs - it would be very expensive to pay for yourself. I hope the link Deb gave you will have some positive news for your situation.
best, Lulu
Here's a web site of an international MS foundation:
http://www.msif.org/en/
Click on resources or email your question to: ***@****