The Boil is a sack-like in The Binding of Isaac: Rebirth (TBOIR)
It starts as a small red tomato and starts growing.
Then, when fully swollen, Boils shoot blood bullets
Strategy Guide/Tips[edit]
- When Boils get hit, they shrink to a smaller size but will regenerate if not destroyed
- Boils deal no touch damage
- Gurdy can spawn Boils
