What a great reply. Takes me back to my days on t'wards, with patients dropping left and right with virulent D&V...
As you'll know, the handwashing/general hygiene is part of a constant battle against infection. I used to tell student nurses to wash their hands at every opportunity. For one thing it's good to be seen doing it. For another it gives you a minute's breathing time to think about your next job, and lastly, wash wash wash, it helps keep you out of the bog!
Wash your face too. I used to wash mine several times a day, especially round my mouth. It's probably harder to do that if your fizzog is plastered in make-up but as I didn't bother with all that mess I found it easy. In case I'd touched my face, y'know. Beards, urk, HOW unhygienic.