Can I drink 4 weeks after knee injury?

I dislocated my knee n tore some of the ligaments that hold the kneecap together, it’s been 4 weeks there’s still quite a lot of swelling but I can walk and not too much pain would it be okay to drink a bit with my buddies this Friday? We were just gonna chill in his living room cuz they know my knee is fucked up and was not planning on doing much just hanging out.