well nose blowing is good, but it doesnt do squat really when the nasal and sinus membranes are inflamed and swollen. no amount of blowing is going to treat that symptom. but yeah I spent years and years with allergic rhinitis and did nothing (lived with dogs which I am VERY allergic to, smoked for years only exacerbating the symptoms, etc) and now after all those years of nasal problems and numerous instances of acute sinus infections (the bacterial kind) I have developed chronic sinusitis that i skind of just up there chilling out and reaking havoc on 3 mf my 4 sinus cavities. amazingly enough, my nasal passage are free and clear almost 100% of the time.