how do you know he's teething? just so you know, around this age is when they start chewing on their fists and drooling *a lot*, they don't know how to swallow when they're not eating so out it pours. a lot of people think they're babies are teething when they start doing these things.
if that's all he's doing, he's probably not teething. of course, he could be, but he's pretty young.
you can try giving him a frozen washcloth or a teething ring, but you'd have to hold it for him. that's all i can think of.
good luck!