Hope your Mother is ok. All you can do for your mother is be there for her and hence when she gets depressed give her a shoulder to cry on. I don't know how old your mother is but the older the person the harder it might be to treat. But your mother could be one of the lucky ones and goes through this like a breeze. All the best with your mothers treatment and I hope she recovers from this and that no other condition will arise because of this . 'Bye for now.