Magic tools.
I don't know if one might work.
One that works inside the body should be related to Cliff's magic tools.
But Cliff's magic tool was custom made for Elinalise only.
Observe Elinalise's condition and adjust step by step.
Although there are results, but it's still incomplete.
Maybe it only needs a few adjustments to control Nanahoshi's symptoms?
But right now, Nanahoshi doesn't have the time for observation and adjustment.
She has coughed up blood.
Even if we cure the surface symptoms, it will just happen again.
Next time, it might be fatal.
Moreover, if we froze time, then there's no way to experiment.
Magic tools are no go.
Maybe one might eventually work, but right now we need a more immediate fix.