Yes, Charcot Marie Tooth is inherited. At this time it remains permanent. Different people experience different onsets, and different progression rates, of this type of PN.

Do you read this forum at all Jesse? We discuss this a lot. Especially lately, it seems.

http://neurotalk.psychcentral.com/thread121564.html

Kitt and Susanne post about it often. CMT is the abbreviation for it. They know much more about it than I do.

We are lucky to have both of them to help new posters, as CMT patients do not often come here. They accept their lot, and since supplements are not going to do much for them, unless they have a severe deficiency that needs correcting for other reasons, they won't look here. Some CMT patients have had their symptoms since childhood, others may be later onset, and there is some evidence that drugs may precipitate latent CMT.
It is a complex topic as there are many variants to the genetic
testing results.