Wondering is she cut out nightshades (potatoes, tomatoes), processed (I'm assuming canned soups here), biscotti, and crackers, pickles, dressings, etc. and just went on meat, fowl, fish, coconut oil, grassfed butter, and lots of vegetables, if she'd feel better. Even cabbage causes some people to bloat. Like a simple steak sauteed in butter or ghee or coconut oil, with lots of sauteed mushrooms, and steamed greens -- lots of greens. Maybe all cooked vegetables until swelling goes down. Water and green tea is super, and she's drinking that, so that's great. Just simple stuff. Seems like a lot of swelling, but there does seem to be a lot of processed in her food list. Chewing extra helps too. Best of luck to her.
Think about the feel of looser shirts
Keep it simple
Eat really tasty food