She has a mild dementia and doesn't want people in the house, but my sister is disabled and recovering from extensive surgery. We want someone in the house to help with dinner preparation and light housekeeping when my sister goes back to work in March. We plan on adding more days to the caregiver's schedule when family members leave and just mom and sister are here alone. Mom can get very angry if she doesn't like something, but she doesn't throw things or yell at visitors in the house. We really need a caretaker here. Thanks in advance for any suggestions.