Thank you to everyone who responded to my question. The variety of opinions from by my specialists was reflected by the community response.
I am aware that some cases of ataxia are caused or aggravated by alcohol use. That does not appear true in my case.
A doctor I saw only ounce (for other reasons than their stand on drinking) cautioned against any alcohol use at any time. Implying I might never walk again if I had a glass of wine. Years and dozens of drinks later, that does not seem to be the case.