Your husband's treatments may not do a thing for him. This is a basic fact.
As to vibrations, if I were a jack hammer I could destroy many things!
My cell phone is set to vibrate and I often miss calls because I do not notice the vibrations. I moved my cell phone to my left pocket because, although my left leg is weaker, it does not have as many vibrations as my right leg.
In time your husband will come to ignore many symptoms. In the beginning the symptoms are more annoying because what was once "normal" for the MSer is now "abnormal" were we a normal healthy person. MSers have to adjust their definition of "normal". When the mind is in a position to accept the new normal, then the MSer can enjoy life much better, I think. As the disease progresses, the MSer may need to adjust their "normal" definition. While I have daily symptoms without respite, that is based upon a healthy person. I have learned to only watch my triggers to prevent the Big Symptoms. Also, things like the MS Hug or some nerve pain, or my gait, etc. no longer surprise me. They are part of who I am and I do not grieve the changes or the problems associated with them. I think that your husband will learn to tolerate more as he learns to deal with his MS. He may find a need to adjust his activities, but life is still a blessing and compromises can be made. Redefine "normal" and start enjoying life again.