Hi Marcia and welcome

http://en.wikipedia.org/wiki/IVIG Here is a link to info about IVIG, which is Intravenous immunoglobulin, it is a blood product that gives us a boost when our MG is flaring.

http://www.mestinon.com/ Here is a link to Mestinon, one of the side effects is muscle twitching. I get it in my arms and legs, it really is quite wierd to watch, thankfully I don't often get them in my face.
Hope this is helpful
Kate