Some work places are ready to accept work from home and others are not.

This is true not only for people with a chronic illness, but also for mothers with young children and even people who work and concentrate much better at home than in a busy office.

Some work places are very strict on the kind of work that counts as "work" whereas others are ready to be much more flexible.

Some work places are more flexible with whoever they like (or with whoever is more demanding. )