99 yr. old had a stroke, prior to that she lived alone and was very independent. After her release she has become combative, does not want the caretaker in the house; refuses help with bathing, dressing and still tries to be independent. This presents a problem when you have timely appointments- she take hours to get ready. Her mood changes daily, from quiet to aggressive, when she is being aggressive she uses bad language and swears everyone is stealing. She is hoarding the mail and refuses to let the caregiver see if anything of importance is there. Her behavior has become 180 degrees since the stroke; her doctor has said that the stroke did not effect the portion of the brain that controls behavior, but that is what has changed. If this is dementia - is there medication that can be given? Thanks for any suggestions.