Hi..it's a wisdom tooth issue most likely..do lot of warm saline gargles ...take antibiotics and anti inflammatory..

Hello ma'am, The photos shared seems to be like issue with your wisdom teeth. Kindly do consult the dentist for thorough examination of the problem and treatment

Hello The third molar on that side has to be extracted. Please visit the dentist for the same.

The pain is because of the lower teeth (3rd molar) disturbing the mucosa because there isn’t any teeth opposing to it.

See it seems that the 3rd molar needs to be extracted

Upon review these were the findings-Intraoral swelling buccal mucosa and posterior aspect of left lower jaw Elaborately these are to be done for-Clinical evaluation and oral surgical extraction of impacted molars Provisional diagnosis-Chronic generalised gingivitis, impacted third molars causing difficulty in bite Differential diagnosis- - Diagnostic tests-Clinical evaluation mandated Treatment (advise) plan for- 1. Oral surgical extraction of impacted teeth 2. Oral prophylaxis 3. Tooth caries restorations Exercises for mouth opening and bite Prognosis- Good

It's bcoz of wisdom teeth.. If much pain & swelling have antibiotics & painkiller..

Wisdom tooth issue. Before getting extraction try warm saline rinses and maintaining proper oral hygiene. If the issue is recurrent then get extraction done.