Hi thanks for contacting HCM.... I have gone through your query.... First rule out allergic condition like asthma by pulmonary function test by spirometry .... Second as you have smoking habit , so bronchitis has to be ruled out.... Chest x ray useful for it..... Symptomatic management done ad presentation is not severe.... As a doctor I will suggest you to stop smoking as it is respiratory irritants.... Try to avoid exposure to dust , pollen , smoking , pollutants ..... Antihistaminic drug useful for relieving inflammation.... More water... Fried food and spicy less .... If blocked nose then oxymetazoline spray given... Put cut ginger piece in boiling water ...allow for 5 minute....then cool and drink it... Steam inhalation helpful.... Regular follow up done.... If asthma confirmed sos MDI of salbutamol helpful.... Take care. Dr.Parth