medicines being used after mastoidoctomy + regimen repair of right ear. Complaint identified as bilateral COSM, unsafe in right ear. Operated right ear only on 21.4.2014. Rcin 150 mg, 1 tb bbf per day. getamicin ear drops 0-0-0 a day, bacteria identified as Pseudomonas aerugonisa gram negative in both ears. How long it will take to cure the discharge still having from both ears. Whether medicines are hopeful? all other antibiotics except-3 only- tetracycline, gentamicin, impenim - are resisted by bacteria. There are no other adverse health conditions. no bp, no sugar, all medical conditions are normal.