Ask-a-Dave's-Gardener: Treat an indoor bay tree for scale, 2 by fl0wers

fl0wers wrote:
I have a 10' bay laurel tree that has soft shell scale. I've tried spraying and even washing the entire plant by hand but have never been able to get rid of the pests.

It also has some sort of fungus or something?

This tree is a 35-year old "friend" and I don't want to get rid of it as some here have suggested. Do you have any ideas? I do move it outdoors in the summer but the scale is probably in my house by now. Thank you!