hi,
There are multiple options for treating depressive disorder, the one which your mother appears to be suffering from now. Before starting treatment I want to be sure of few things.
I want to know her
Thyroid levels in blood. Has she attained
menopause and for how long? If not, Is she having disturbed menstrual cycle?
How is her appetite and sleep?
Also we need to get her liver function and blood cells checked.
Once we are sure that
depression is not due to other physical problems she can be started on antidepressants like Escitalopram, Florentine, sertaratline. There are numerous other medicines which will help her. The best could be chosen, once she is examined properly.
You can also take her to a Psychotherapist so that few sessions of therapies like cognitive
behaviour therapy coikd be taken. She can discuss her problems there and she would be enlightened with new understandings and also will be taught with some new skills which she might be lacking!!
Regular food, sleep, exercise are all the first steps that you can right away start with. She can be definitely helped with so get her to
psychiatrist for a detailed evaluation by the earliest.