If it were me, I would abstain from alcohol completely for a good long time - maybe forever. Even if you end up symptom-free for months or years, there is no way that having a few drinks is worth the risk of PCS relapses. As Mark said in another thread, "be nice to your brain." You can have a great life, an outstanding life, without alcohol.

Personally, I think I'm probably done with alcohol - and I drink very little.