Hello Gentleman . I want to tell you in response to your question whether both ( prostatitis & allergic rhinitis ) are curable or not . Both these are curable ,if proper treatment and proper precautions are to be taken ( avoidance for allergy). When such patient visit I advise them to take tablet named nephrogesic ( phenazopyridine+nitrofurantoin) tid for 10-15 days . But this is a prescription medicine so consult a nephrologist and get his opinion. Allergic rhinitis is absolutely a different thing from prostate infection . Mite , dust , pollen , hay , smokes, fumes , fine dusting powder, sudden fall & rise of temperature causes allergic rhinits so take precaution . Certain drugs also develops such type of allrgic rhinitis so avoidance is very mush effective in this type of case. However in my clinic I prescribe monteluekast+ bambuterol combination twice in day for first 7 days , there after once in day till allergy . Strong coffee is also helpful in allergic rhinitis with steam inhalation. Good luck.