Hairball

I have an 8 month old kitten and he is going this dry cough/gag sometimes and he just threw up today but doesn't appear to be "sick".  I'm guessing its a hairball.  What can I give him to help get rid of it?  He's a domestic short hair, indoor only cat.  Thanks.

to TCS! This article, Cats and Hairballs should be of some help. There are also quite a few threads on the subject, so you can see it's a common problem around here!