You're not giving enough details for us to really be able to help. So let's begin with your hair type, whether it's "virgin" or color-treated, what products you use and how long you "blow dry", at which setting and as unique1193 said if you're using a diffuser or not.
As for the finger combing, that's a no-no. All we're suppose to do once the hair is dry is scrunch out any crunch left by a gel and/or "fluff" it from underneath with our fingers to separate the canopy (top layer) from the bottom. Manipulating our hair causes frizz, the most that we should do is arrange or re-shape a few curls at a time with our fingers.
2A/3A, medium length, layered, colored dark/medium ash blonde - "CGer" since April '02.
"Converting the 'curlskeptics' one curly head at a time..." HWHC