I would be afraid that using a neck brace a lot would just limit neck movement further and do more damage in the long run. By holding my neck so stiff I cannot move mine very much now without pain and A LOT of dizziness. I can’t move it to look to cross the street or let alone drive.
I do have a menthol pain cream that helps my neck A LOT. I get these twitches when the visual vertigo gets bad (and maybe related to neck pain too) and using the menthol on my neck can reduce the number of twitches.
A moist heating pad/wrap also helps my neck a lot, but of course not used at the same time as menthol. Occasionally I notice I get a tad dizzier with heat, but I’m assuming that’s just the muscles relaxing.