I have to reiterate the Protector's warning, better use the wish stone wisely. 'Heal the body' can take on so many meanings that the first thing to pop in my mind was Franken Fran....
How to beat a dungeon:
1. Spray the dungeon boss once
2. Spray the dungeon boss another time
3. Dungeon boss converts back into human form and you tell it, "Bad boy/girl! Now stop shitting wherever you please!"
4. Also ask boss where treasure is
5. Grofit^ and stonks^
You idiot! why would you hand that stone to her? Just make the wish yourself.
Ugh, she's gonna wish something selfless for her brother. Back to square one we go.