This is purely my opinion...and not meant to offend anyone...and I realize this is a difficult decision you are facing and that there are no easy answers.

If it were me and my child...I would NOT force them to go to school. What she is dealing with is incredibly difficult and piecemeal classes here and there while she is suffering won't do her any good either. I know from experience that when your pain is at a certain level...until you learn to cope with it...physically sitting somewhere and being forced to do something doesn't mean any of it will sink in. So she would be aggravating her pain and getting no benefit from it.

I would look into home schooling...possibly some sort of online home schooling if possible. Then try to get her in some sort of routine every day where you work on her health and getting her better...but also on schooling and keeping her up to date with class work. This way she can be in a safe, comfortable environment and continue learning while also working towards getting her pain under control and learning to manage it. Until she learns to manage the pain...forcing her to go to school will be a wasted effort (in my opinion).

Now...with that option she is losing out on some things. She will lose out on the social interactions that you get in school...but she's missing those anyway right now. If she can successfully complete high school and get her pain under control...then she will be able to continue on to college and hopefully get the full social experience of school that she cannot get right now because of the pain she is dealing with.

I honestly think that you guys should look at all the possible options you have: forcing her to go to school (at whatever frequency), home schooling, online schooling, and anything else you can come up with....and then decide what will be best for her overall health and well being. Only you as a family can decide this...and your daughter should be included in the discussion. Whatever you choose...you need to lay out the goals and expectations and make it clear that you are trying to do what is best for her because you love her.

Take care and good luck.