My sister thinks she had been beautiful once but now has been deteriorated. Its true but not as much as she thinks. She is still beautiful but I can't make her believe it. I say that I will try every thing to make her look as she wants. But no use. She is now suffering inferiority complex and her life is becoming unbearable to her. I know she is still beautiful and I praise her a lot too. But no use. What should I do?

