When we were relatively new snake keepers, one of our daughters got a hold of a tube of ben-gay, and smeared it all over the walls. The whole house STUNK. It was bad enough that my husband, who has asthma, couldn't go upstairs until we'd aired out the house for a few hours.
I called the vet in a panic, and I was told something along the lines of "if you had birds, they might be dead already, but reptiles aren't nearly as sensitive to that kind of thing, so they'll probably be ok." And they were just fine.
Still, I think I'd avoid using it in the same room as them, especially if you tend to use it several nights in a row. You can use the rub that you put directly on your body, and it probably won't permeate the room so much.
Personally, if you have a lot of sinus problems, I HIGHLY suggest looking into doing those saline nasal rinses. It sounds so gross that it kept me from trying it for years after it was first suggested to me. But I did finally try it, and it isn't actually as bad as it seems like it would be, and it helps SO much it is way worth the annoyance.