Is there any seriously effective treatments for NPD?

and if you know someone with it... and this person has been dx'd by three professionals, even through MMPI... but doesn't know the dx. See, whenever they try to tell her, they cant get close to the actual dx... her ego is so fragile and protected that her reality unravles and she ends up hospitalized. She apparently cant even handle hearing the dx.

i know though... and it's killing me. i know she cant ever get help if she doesn't know. The consensus seems to be that her dysfunction without the knowledge is better than complete lack of functioning and psychosis if she knew.

what do you guys think? Should she be told outright?

if there isn't an effective treatment, is there really any point in destroying the reality she knows and functions in?

this person means a lot to me and holding the secret is awful, and unfair to the both of us. i dont know what to do. i want her to have the best life she can, but i dont want to risk what she has just to alleviate my guilt.

finding out she had elements of OCD style resulted in a week in the hospital. Otherwise she functions ok, holds down a job and has a small circle of friends. SHe spends most time alone though because her relationship skills are well... an NPD sort. She just recovered from a 3wk hospital stay that happened last year.. took a year to get back on track.

little help and advice?