is used to treat rheumatoid arthritis.         

to depression, you can, according to experts and therapists, start a routine of your day, set goals for yourself, exercise, eat healthy foods (and sometimes treating yourself to sweets), and get enough sleep. people have often found it easier for them to find someone they trust dearly and sharing their feelings and emotions with. hope this ! : )

i can't answer your question in very sad situation.

but if your situation is very bad, then you can find happiness by thinking about your past that has full of happiness.

or you should do meditation for some time to get rid off from that bad situation.