Hello Thanks for writing to H.C.M. for your query. I have gone through your query regarding nasal discharge and obstruction, cough andirritation in throat along with blood in sputum. You are already being examined by a doctor who adviced you for operation. As per your symptoms it is likely to go for these investigations- (a) C.T. scan of paranasal sinuses. (b) Culture and sensitivity of throat swab. By this C.T. scan of sinuses we can know about involvement of osteomeatal complex and the extent of disease, C /S report tell us about infection. thus if sinuses are found to be having thickened mucosa and Osteomeatal unit is blocked and is due to infection than surgery is recomonded but on the other hand if all this is because of allergy than conservative treatment will be helpfull. Regards.