Hi...the gum infection with pus discharge is due to the tooth with cavity extended to the pulp and caused infection at the tip of the root.The condition is called 'PERIAPICAL ABSCESS'.The cause for it has to be first diagnosed through Xray examination.Self medication will cause serious problems .
Next Steps
Visit dentist immediately and rule out the cause nd get correct treatment plan.
Health Tips
Advised to do regular dental check up and teeth cleaning every 6 months.