I hated every minute of training, but I said, "Don't quit. Suffer now and live the rest of your life as a champion." -Muhammad Ali
I'm pretty sure drinking alcohol in general is ****ty for physique purposes. maybe some red wine is good, but I don't know anyone who goes to the club and sips one glass of wine.
nonetheless, pretty much everyone will tell you to limit alcohol on cycle but people still drink and they don't die. will it tax your liver a little more? probably. but if you're otherwise healthy and not on some extreme dose of toxic hormones then you're probably not going to run into serious health problems.
pct aka nolvadex in this case since you used a methyl, is hard on your liver too. And you should be using nolvadex if you used a methyl. So I'd avoid drinking on PCT as well if I were you