P.S.
Brushing your teeth won't help, and they cause bad breath.
I love causing nightmares LOL
Anyway, the best way to get em clean is to use irrigation (warm salt water with a water pick) and gargling with warm salt water helps (gargle deep), and if all else fails you can go back and get em out with a q-tip or even your fingers.
The thing that always makes em worse is sinus infections with post-nasal drip...