Towel-drying your hair is important, so hair can dry faster. The wrong technique can result in extra frizz and poufiness, though. The right ways to air-dry hair include only gentle drying techniques. As far as your towel goes, it's best to use it to remove excess water from your hair instead of rubbing it vigorously. Your head may still feel greasy for a bit but that is because you need to condition so the length of your hair doesn't become too brittle from preventative damage brought on by excessive brushing before all the moisture has left the strands.