Pain on right Side of your jaw is probably because of erupting third molar. An erupting third molar applies pressure to rest of the teeth causing tenderness. To confirm this diagnosis you need to get an IOPAR done or OPG.

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Read your query.

Is the mentioned tooth decayed?

The swelling is due to the formation of abscess of the tooth related to which the tooth will be felt like being extruded out of its socket .
Abscess can either be due to the decay in the tooth or due to the inflammation of gums( periodontal abscess).

I would advice you to visit your local dentist at the earliest and have an radiograph done. Treatment can be done based on it either root canal treatment or any appropriate one .

Do not apply hot bag on it externally.
Do salt water gargling.
Antibiotics like amoxicillin and metrolag will be needed on prescription.

Hope this was helpful.
Thanks and regards.

helloo....reading thru ur symptoms i can say that the tooth has got raised bcoz of pus collection under the tooth....its bcoz of this pus ur jaw is swollen and pain and u r not able to close ur mouth...but dont worry...meet ur dentist..get it drained...based on clinical condition he wil plan the treatment and take antibiotics...do it as soon as possible...y to wait and suffer pain if u have options to solve it!!!hope u have got necessary reply..have a healthy day!!!