My speech therapists showed me a few exercises that help limit the nose problem:
Using a straw - suck a piece of flat paper - try to hold the paper up with the suction. We started with a 1/3 straw and a 1/4 paper. The longer the straw and larger the paper the more work. We progressed to file folders and whole straws.

I'm an athlete so the lung power was not a problem. The nose problem has almost completely disappeared.
Best of luck to you.
mark

11/1999 SCC tongue - surgery
1/2000 Met(s) in lymph nodes - modRND
2/2000-4/2000 RT ~6 weeks
end of 2006 SCC tongue - surgery
1/2008 SCC BOT - surgery / PEG installed
2/2008 chemo & RT
4/2008 last time I consumed solid food by mouth