proctologist
'Docot' has no meaning in English, it's gibberish or very incorrectly spelled, I can't even think of a close word.
Dermatologist treats that condition
A gastroenterologist treats stomach pain.
Any kind of vegetable! And you can buy piggy treats!
A gastroenterologist treats lactose intolerance and ulcers.
an oncologist
A psychologist.
gastroenteroligist
nuerologist
Probably just training treats
Pediatrician.
podiatrist