Frog has the most damage against them and then torch below that. Water can make them avoid you but they can also be outran just by walking if you start moving as soon as your targeted. Running gets you away faster tho obviously.
Literally, hit them with a torch
They are weak to fire, and should die pretty quickly
It’s recommended to keep resources in your inventory to repair said torch when in the bog as it attacking with it burns through its durability