hi there. Its embarrassing isnt it. I think if you stay in someone's home then they should be, in theory, close enough friendship wise not to worry about us flaking everywhere. Hotels...well i'm sure they have seen far worse messes than flakey skin all over the place! I basically keep a small cloth in my suitcase if i stay anywhere just to 'tidy away' any flakey bits i leave behind on surfaces....not going to take a dyson hoover on holiday....excess baggage would be a bit expensive...lol...seriously i wouldnt stress about it too much if i were you, you go away to relax and try to get away from things.
best wishes
Rosie
ps....welcome to the forum! x