Hi!
I understand the pain or trouble you must be in right now.
But it is impossible to suggest the correct medication without knowing your medical history & the nature, extent of infection.
Next Steps
Get an OPG(full mouth x-ray) done at the earliest.
Consult at the earliest.
Health Tips
1. Betadine mouthwash at night before sleeping is mandatory.
2. Warm saline rinses twice a day.