Swelling

Okay so since Monday my feet have been fairly swollen. Today they're the worst they've been. To the point it's up in my legs. Cannot fit shoes on and slippers barely fit at this point. I work 10 hours straight no lunch breaks, and drinking water when I can. Spoke to Drs today and they said as long as my BP is okay and I don't have any other issues/symptoms there's nothing else I can do. Any tips on reducing swelling?