Tarak
I feel for you. Your voice is your living, and its a real drag trying to do this balancing act of not overusing it, and yet this is your busiest season.
I'm not a praying man, but my thoughts are with you.
As Kash said, finding a real doctor who understands pipe smoking is a real rarity in today's climate. Every doc I go to (there are many) tsk tsk's me about smoking anything. Its just the way it is now.
Good luck handling this challenge.