you'll be fine.

i reckon cotton undies are best cos they're less likely to sort of stick (not that they really stick as such) afterwards (oh god, i really hope that's not just me ).

the waxer i've been to has wipes for you to use if you want after you get undressed (while they're not there). i like that - esp if it's hot/you've been at work etc - makes me feel a little 'fresher'.

even if it does hurt, you'll like the results so much you'll think it's worth it