hello and welcome,
Pain in the right side of the jaw is may be due to infection arising from carious teeth , periodontal abscess
related to jaw bones , periapical abscess
draining from infected tooth , cysts or granuloma.
Exact diagnosis can be made only after clinical examination and X RAY evaluation.
i would suggest you to get the OPG radiograph done , which will show the cause of pain ,infection and the structures involved.
As you have mentioned you have severe pain
that has spread to lips , gums and tongue . i suspect it to be a periodontal abscess that needs to be drained and associated teeth needs to be treated with root canal procedure followed by a course of antibiotic .
consult a dentist
soon and get the evaluation done , meantime you can start with antibiotic AUGMENTIN 625mg along with acecloefnac serratiopeptidase
tablets for 3 to 5 days which will help in subsiding pain and inflammation.
i hope this helps,