By ATN -- do you mean Atypical Trigeminal Neuralgia? If so, there are 5 different types of surgery. There are also medications -- mostly anti-seizure medications normally used for epilepsy -- that are used to control the pain. Problem with the drugs is, they can cause other problems (kidney/liver) and regular blood tests are necessary.
A facial pain specialist is the best doctor to seek out or a neurologist. I suggest a facial pain specialist first because all they do is treat people with TN.
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