I have a white pimple on gums, vry bad teeth. i am chokin on phlem ev morning, cough, r side of bk of neck is swollen, stiff but no fever. whats wrong?

Virus? : What you are describing could be many things. One of which could be a virus. See your physician or dentist for an exam and tests.

Sinus tract stoma: This is the most common diagnosis for a pimple on the gum. It forms at the termination of a fistula, which emanates from an abscess at the end of a root of a tooth with a dead or infected pulp. Treatment is a root canal on the offending tooth. Extraction is also an option. There can be other causes so get evaluated by an endodontist!