Hello Inflammation of nasal lining membrane is known as RHINITIS and if it is due to some allergen ( dust , mite , pollen , molds , pests , sudden fall and rise of temperature are predisposing factors) known as allergic rhinitis. Nasal itching, watery rhinorrhea, nasal obstruction , sneezing, post nasal discharge . You are also having these symptoms ( most of ). The best way is take care and avoid these predisposing factors . Since you are taking allerga i.e. fexofenadine and nasal spray ( metaspray). When such patient visit my clinic I advise them to take moneleukast+ levocetrizine tablet once or twice in day . Ehiderine = saline nasal spray is the best. Hot coffee and steam inhalation also provide some relief. Hope this will help you.