I agree with/ both GuitarRox & auntiejessi that you should prbly try to moderate your drinking a bit. Not only for this prblm, but for your overall health, and also, excessive alcohol use is a factor for many men who later develop ED, so if you want to retain good sexual function as you get older, my advice is to cut back a bit.
As for this temporary swelling, that has happened to me occasionally from either extended Intercourse or masturbation. I noticed some swelling & discomfort the next day, but it cleared up within a day or two. What I DON’T know is what doing this repeatedly would lead to - in my case, it only happened occasionally & cleared up on its own. If you were to continue this, for example 2 or 3 times a week over several years, I’m not sure whether some permanent damage could occur. Im inclined to think it most likely would still clear up if you give it a rest for a couple days, but if I were you, I wdn’t wanna risk it. As guys, one of the most terrifying things for us is the thought that we cdn’t perform sexually.
Hope this advice is useful...
Think this can happen if it is indeed too vigorous. Things will swell when that is the case in response. I would say that you may just want to skip the attempt at sex when drunk or not drink so much to combat this situation.