That wasn't what was asked for, it isn't helpful. She's already been to the doctor and been put on a load of medication.
there are many things you can do that will work;
Pray - it might sound silly but it does work.
Distance healing - as has already been suggested.
Herbal sachet - as has already been suggested.
Meditating on the problem - Just thinking about her helps
Offering up some of your energy - as you do in a spell, distance healing, or charging a herbal sachet.