HI I have gone through your mail, as you said that you have ear infection
past three years,but you are still getting pain ad ear discharge
mixed wit blood. After considering your complaints it is not clear that your infection is involving what portion of ear (weather it is confined to external ear only or reaching up to inner part after perforating ear drum ). Therefore you are advice to go for these investigations - (1) C.T.scan of ear H.R.C.T. (2) C.T. scan paranasal sinuses
(3) culture and sensitivity of ear pus (4) Audiometery - Pure tone & Impedance. After his you should consult your E.N.T.doctor for clinical examination of your ear and co-relate inferences of investigations to establish the final diagnosis and treatment.Thanks.