This is a popular topic. We have to give up so many things, it seems unfair to have to forego wine or beer as well, but that is a real possibility.
Earlier this year I answered a similar question. Here is part of that answer:
"Yes, you can still have wine 'once in a while.' The key is moderation.
And here's more good news if your preferred wine is red. There is a theory that a glass of red wine may even be beneficial!"
Let me highlight that. Red wine in moderation might actually have a positive reaction with MS molecules.
Let's go a step further. You don't mention if you are taking any diseases-modifying drugs. Just in case, let me refer you to another question answered by Merely Me that was specific to drinking beer while taking Rebif. That does not sound like a good idea.
Last year Merely Me explored the relationship between MS and alcohol in a sharepost.
There is quite a bit of information, but there is not one clear answer. The best course of action is to talk to your doctor who is familiar with your particular situation. Then, if you pick up a glass of wine or beer, remember not to overdo it.