Valsten 'the doctor'

Valsten, but often called The Doctor, his last name is unknown and his background is vague. Valsten is a rather optimistic jolly fellow, which is unusual regarding his work, he has a noticeable hearty laugh. The Doctor is cloaked in long black robes with wax on them to repel any sickness, he wears a mask filled with herbs to cancel out the rotting smell as he does his work, black lenses to cover his eyes. The mask also serves as a way to conceal his face, he clearly doesnt want anyone to know what he looks like.