IRCT20130427013136N6 IRCT 2020-02-13 Babol University of Medical Sciences The efficacy of ceftazidime on bacterial otitis Comparison of the efficacy of ceftazidime powder and Ciprosonate drop on treatment of external bacterial otitis 2020-04-03 anticipated 140 Complete https://irct.ir/trial/45218 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: According to inclusion and exclusion criteria, Sampling will be done by systematic random sampling way, such that patients who referred to the physician will fall into two groups, consecutively. So that the first eligible patients will be entered in group 1(Intervention) and the next one in group 2 (Control). Sampling will be continued till the desired number, Blinding description: In this study, except the secretary and laboratory colleagues, they are not aware of the placement of patients in either of these groups, the physician and patient are aware of the type of drug used. 3 Bacterial otitis externa. Intervention 1: Intervention group: En Intervention group: : After suction, 30 mg ciprofloxacin powder (Exir pharmaceutical company, Borujerd, Iran) will use for once, by insufflation in to middle ear space and the existing perforation accompanying the microscopic guide. Intervention 2: Control group: En Control group: After suction, ciprosonate drop 0.3% (Sina Darou Pharmaceutical company, Tehran, Iran) will use in the ear canal space for once. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information