Cauterize

You reach out to a creature and sear any wounds it has closed. Choose a creature within range - if the creature is unwilling, you must make a melee spell attack. An affected creature takes 2d4 fire damage - at the end of its next turn, it regains 5d4 hit points.

A creature that is resistant or immune to fire damage receives half as much, or no healing, respectively. A Creature reduced to 0 hit points by the above damage receives no healing from this spell.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, both the fire damage and healing increase by 1d4 for each level of spell slot above 1st.