I might do a steam room or saunna, but I don't think I'd workout, just for the reason Presser stated. I don't want to give it to someone else, just seems rude. No sense giving it to some other poor soul. I hate it when people come to work sick too for the same reason. I work outside, and if I get sick it makes it a living hell in the winter time. Only trouble is that nobody can just take a week off for a cold, so we just have to deal with it, but the flue is different, comes and goes fast, so just stay home and get well, and don't spread it.