When a Sibling Visits from out of Town and Disrupts Caregiver Plans

CAREGIVER QUESTION: "My sister is making her yearly visit from out of state next month. She always comments on everything regarding Mom's care, from Mom’s doctors to the kind of diapers we buy, to the color of Mom’s dish soap! She challenges everything we do and every decision we make. She always creates a flurry of activity and disruption. We "country bumpkins" cannot measure up to her big-city expectations. I want to tell her to stop coming since we do all of the caregiving anyway. What would you do?"