you most likely have a condition called rhinitis medicamentosis. <link> i think you will find this webmd article very helpful and your medical provider can also provide you with a prescription steroid nasal spray that can not only help break your nasal decongestant addiction but may help open those problematic nasal passages.
i have been using a nasal decongestant for a while. now i have to use it all the time or my nasal passages close up.