Magnum Eva Musby is good for getting them to the table, personally I used whatever leverage I could ie phone, going anywhere, doing anything etc would be on the provision she ate her food. Also I would take food to her and actually stopped eating at the table (for the most part) we still normally have dinner on our laps now in front of the telly!
Lots and lots of distractions, talk about absolutely anything other than food! I used to whittle on about any random thing I could think of just to distract her from the thoughts and the fact she was eating. Other distractions are telly, games, crafts, iPad etc.
Re work if you are financially struggling there are certain benefits you can claim for once you have a diagnosis, I think for under 16s it's DLA but also universal credit (depending on circumstances.) I was fortunate that my employer was fairly understanding and I get paid sick leave.