Alcohol decreases effectiveness of antibiotics and thinners the blood – thus no drinks before and after op. i was told 48h before op – no alc. and it is important. i think getting the surgery done smoothly and healing quick for me was the top priority.. so i could wait with drinking. must admit though i really enjoyed my first glass of wine this week! i had to go to dinners during no-alc period – i would not refuse to drink, and have wine in my glass, occasionally took a smaaaaaalest sip ever so made an impression i was drinking. regarding other excuses – u have to drive later or u are taking antibiotics now due to cold/flu/angina and have to finish the course, though u already feel fine.
good luck with ur op!