Drug: prednison and azithromycin. 1  Patients with typical cat-scratch disease will be treated with a 5-day course of prednison and azithromycin. 2  Cap Azithromycin 500 mg qd (first day), then 250 mg qd for 4 days and Tab prednison 1 mg/kg/day, not exceeding 60 mg/day, qd, for 5 days.