Yes it is correct, but you wouldn't need to say 'after the rain' in actual conversation. You could just say: So two work colleagues enter office at the same time. 'Did you get caught in the rain too?' 'Yeah it caught me just as I was leaving the house, it hasn't stopped! I'm soaked.' A little later... 'Have you dried off yet? 'No, not really' 'I've been putting my jacket under the hand-dryer in the bathroom, it seems to have done the job!' Hope that helps :)

That's fine, Iris. You could also say, "Have you dried off from the rain" (since the rain was the cause of them needing to dry off).