Thanks for asking the query,
According to your clinical symptoms i suspect that infection from your tooth has spread to the periapical tissues, also check for swelling.
I would suggest you to visit the Dentist
get the checkup done take x-ray of the affected tooth and start with root canal treatment
Take complete course of antibiotics and analgeics under the prescription of your Dentist.
Take lukewarn saline and antiseptic mouthwash rinses ans maintain a good oral hygiene