Cauterize

You reach out to a creature and burn away any impurities. If a creature is unwilling, you must make a melee spell attack. An affected creature takes 2d4 fire damage, and then regains 5d4 hit points at the end of its next turn. If a creature is resistant or immune to fire damage, the healing done is halved and negated, respectively. A creature reduced to 0 hit points by the fire damage receives no healing from this spell.
At Higher Levels. If this spell is using spell slot of 2nd level or higher, both fire damage and healing increase by 1d4 for each spell level above 1st.