I did a google search and found several scholarly articles where Copaxone, both alone and in combination with B12, appeared to aid in limited remyelination in mice.
There is currently a clinical trial being conducted to see if this also is applicable in MS patients.
*mindful that drug effects in mice with EAS does not always mirror that in humans with MS
PS- also wonder why your neuro thinks he can magically

see into the future. In all seriousness, Coapxone has been used for a very long time and many people are happy on it - as are others on other medications.
The bigger question is: What do you want to do?