@MRain
They don't know how healing magic works, as far as she is aware it only heal wounds.
For example, it's possible that it speeds up natural healing temporarily to super speeds.
Or it could regrow lost tissue by feeding on her own energy.
Both methods would have significant benefits and drawbacks depending on situations.
the first example could be deadly if you already had cancer, while the other could possibly give you cancer even if you are in great condition.
The first example might help with getting better when you're sick, while the other won´t do much at all as regrowing flesh won´t remove the sickness.
Just to give a short example...