Suggest Treatment For Severe Nausea, Stomach Ache And Loss Of Appetite

I have a grandaugher that in on several types of medication for pain. She is on Percet, fetynal patch, cymbalta , lyrica, sofran, and synthroid. She has terrible nausea and stomach pain and is not able to eat hardly anything at all. She is seeing a pain specialist, but it does not seem to help. Just wondering if you can tell us what we could do for her stomach pain and nausea. Thanks,