Organisms involved are polymycrobial but often include Fusobacterium necrophorum, Treponema spp, Selenomonas, and Prevotella
Amoxicillin/Clavulanate 875 mg PO two times daily AND
Metronidazole 500mg PO three times daily x 7 days  OR
Clindamycin 300mg PO three times daily OR
Doxycycline 100 mg PO BID x 10 days
If allergic to penicillin, the use Ciprofloxacin 500mg twice daily AND metronidazole 500mg PO three times daily
Metronidazole 500mg PO three times daily x 7 days  OR
For patient with AIDS or immunocompromised with risk of oral candidal infection then add:
Nystatin oral rinse four times daily x 14 days OR
Fluconazole 200mg PO daily x 14 days
Chlorhexidine 0.01% oral rinse BID
Hydrogen peroxide swishing (innexpensive home remedy)
Ibuprofen 400-600mg 3 times daily for pain
Magic Mouthwash (multiple variations) - 300cc of 1:1:1 viscous lidocaine 2%, Maalox, diphenhydramine 12.5mg/5ml elixir
Magic Mouthwash (multiple variations) - 300cc of 1:1:1 viscous lidocaine 2%, Maalox, diphenhydramine 12.5mg/5ml elixir
ENT antibiotics
Neuro antibiotics
GU antibiotics
Eye antibiotics
Cardiovascular antibiotics
Pediatric antibiotics
Antibiotics 
Skin and soft tissue antibiotics