My dogs wait outside the door when I am in any room that they aren't. I love hearing them rest against the door waiting for me with little cries like I have been gone all day and it's been 5 mins.
My GSDs all know how to open doors. No privacy in the bathroom unless you lock the door. Goes for guests too.
Essential oils are a great alternative to medicine for dog ear infections. A mixture of frankincense, lavender, melrose, and coconut oil will work.
Use Monistat cream to treat yeast infections in your dog's ears.