I could use it myself. I've had good results with tea tree oil steam. Use the same as eucalyptus. Add a little to a pan of water on the stove. when it starts to boil, turn off the burner, put a towel over your head, and stick it over the pan. Breath DEEP in through the nose and out through the mouth for a minute or two. Blow about a gallon of mucous out of your nose. Repeat as necessary.

I'll have to look and see if I have any here, or e;se pick up some. Glad I don't have to sing or speak publicly anytime soon.

Slán agat (In this case literally "Health at you"),
Rich