Lovelace, to the best of my knowledge, which is probably outdated, therapy would not be effective anyway. She needs a doctor - an MD. If she would not see an MD, too bad, and this problem cannot be solved. So the only problem that can possibly be solved is the husband's attitude. Maybe you can offer him to read information about the disease, including the information on how people afflicted with the disease often resist all attempts at diagnosis and intervention? Maybe he would then stop thinking that she is lying/weaving tales and realize that she has a malfunctioning brain?