Stupid dentist

I went to the dentist this morning. Technically, I went to the periodontist. I had some minor work done on my gums... Disgusting? Yes, but really no big deal. As I'm sitting there with a big block of ice on my mouth the guy hands me my "post op" instructions and right at the top it says "Wait several days before undertaking any strenuous exercise." Excuse me??? Several days??? You've got to be kidding. This "surgery" involved a few slices and stitches in my mouth, forcryingoutloud. How could exercising affect that? The guy goes over the instructions with me and says "You're a fitness person, aren't you". Um, yeah, just a bit. So he explains that he doesn't want me doing any cardio for the next 5 days. !!! He goes on about increased heart rate, blood flow and swelling, blah, blah, blah, but all I heard was that I can't do ANY cardio - no running, no cycling, no nothing - for 5 days! He said it was OK for me to walk. Thanks, dude. What the hell? If I knew this would be the case I would have had this stupid procedure done before my training started. This just sucks.