Definitive treatment is drainage but antibiotic coverage for S. aureus and Strep with caution to identify Herpetic whitlow
Cephalexin 500mg PO q6hrs daily x 7 days
TMP/SMX 2 DS tablets PO q12hrs x 7 days
Clindamycin 450mg PO q8hrs x 7 days
Dicloxacillin 250mg PO q6hrs daily x 7 days
Bone and joint antibiotics
GU antibiotics
Skin and soft tissue antibiotics
Neuro antibiotics
Nonsteroidal anti-inflammatory drugs
Antibiotics 
Cardiovascular antibiotics
Beta-lactams