Seriously, though, she'll pick up on your stress and you want to keep her as stress-free as possible. Much harder to do than to say, of course...
I remember how stressed we were when Macie had her case of demodectic mange.
Check with your vet (or Dr Lee) on whether using Goodwinol is safe if the dog is on Ivermectin. We were fortunate enough with Macie that we didn't need the Ivermectin. A good diet with omega-6 supplements, along with stress reduction and daily application of Goodwinol to the lesions was enough to get her healed up.
Other than the mange spots, her coat looks beautiful! I don't suppose you have any pics of her lovely face to share?