You are suffering from wisdom tooth eruption problem. In such cases , because of lack of space in your jaw or due to malalignment of wisdom tooth, the area around the wisdom tooth gets infected, the surrounding gums get inflammed and swells and the patient suffers from pain, difficulty in mouth opening, difficulty in swallowing, headache, fever, extra oral swelling. This condition is called as acute Pericoronitis. However your case does not seem to be acute and there is not much swelling and infection as such.
Next Steps
Do frequent warm saline water mouthwash and continue for 15 days.
Take a painkiller like Zerodol P twice daily for 3 days.
There is no need to take antibiotics as of now.
Apply Rexidine M forte gel locally with clean fingertip on the affected area thrice daily.
Health Tips
After Lockdown, visit the dentist. He wil be the best judge to decide whether the wisdom tooth should be extracted or a simple operculectomy can be performed, after thorough clinical and radiological examination.