
Originally Posted by
Cory Sampson
The generic verb would be "dry". It would be safe to say "I'm going to use a hair dryer to dry the sweat", and get your meaning across. However, the phrasal verb "dry off" is even more precise if you're using a hair dryer. "To dry (something) off" means to remove a liquid from a surface (like your skin) by drying it. Bear in mind however, that you can say "I need to dry off the sweat" or "I need to dry off my skin" - the object of the phrasal verb can be either the liquid or the surface!
"Dry off" can also be used intransitively, in which case it usually just means causing a liquid on a surface to dry (with a towel, hair dryer, natural evaporation, etc). After a shower, for example, you could say "I need to dry off." If your kitchen counter is wet after you have done the dishes, you can say "Don't bother with the towel - the counter will dry off eventually."
If you use a cloth or towel, you have the choice of saying either "dry off the sweat" or "wipe off the sweat". Like "to dry (something) off", the verb "to wipe (something) off" is a separable phrasal verb. Be careful here, though: while you can say "I need to wipe off my skin" or "I need to wipe myself off", you should not use "wipe off" as an intransitive verb. It sounds a little strange, after a shower, to say "hand me a towel; I need to wipe off."