My mother in-law was diagnosed with fibromyalgia. What can help her with the pain?

My mother-in-law was diagnosed with fibromyalgia. I feel so bad for her she is in such pain all of the time. She takes an anti-depressant and anouther med for this but so far it has not gave her any releif. She use to be such an outgoing and bubbly person. Now she is in so much pain that she hardly get out of bed. If anyone has any suggestions as to what could make her feel better, I would greatly appriciate it,