Neck fistula is caused by incomplete closure of the second or third buccal cleft.

Neck fistula can be complete or incomplete. The inner hole is located in the lateral wall of pharynx, often in the recess of tonsil. The external foramen can be located anywhere in the anterior edge of sternocleidomastoid muscle, usually in the lower 1/3 or on both sides. Mucus secretion and secondary infection often occur in fistula. A complete fistula can expel saliva when eating.

The general treatment is surgical treatment.

You can go to the hospital for surgery. If there is plastic surgery, you should see a doctor. Plastic surgery is good. Of course, some general surgery can also be handled. Specifically, consult the local hospital and see the conditions of the hospital.