Chronic problems like you described require a visit to a homeopath. It's best not to try to treat it yourself if you have not studied the basics of homeopathy, it can be complicated.

Some of the practitioners on this forum might be willing to take a look at her symptoms if you give them some more details. Helpful things to include would be the specifics of her mental and emotional state, the appearance of her face, tongue coating, skin, stool, what makes her worse/better, time of day she at her worst, food cravings, any strange or very specific symptoms you can think of. Take a look at the questionaire thread at the top of the forum page and it will give you a good idea of how specific you need to be.