First-line treatment choices include amoxicillin, cefaclor (Raniclor), or trimethoprim/sulfamethoxazole (Bactrim DS, Septra, Septra DS, SMZ-TMP DS, Sulfatrim Pediatric). Second-line treatment choices include azithromycin (Azithromycin 3 Day Dose Pack, Azithromycin 5 Day Dose Pack, Zithromax, Zithroma...