<s>[INST] sir i m very depressed pleasse help me.i m 27 years old.i m suffering with breathing problem.after every 4 or 5 days i feel breathless.i have consulted many doctors n also i have undergone many tests,everything is fine but after every 4 or 5 dayy i feel breathless all of a sudden and i feel also that one of my 2 opening of my nose is closed,what should i do [/INST] Thanks for your question on Chat Doctor. I can understand your concern. Breathing difficulty with nose blockage are seen with allergic rhinitis and asthma. So better to consult pulmonologist and get done clinical examination of respiratory system and PFT (Pulmonary Function Test). You will mostly improve with inhaled bronchodilators (formoterol or albuterol) and inhaled corticosteroid (ICS) (budesonide or fluticasone). Intranasal spray containing steroid (fluticasone) is helpful in nose blockage. Oral combination of antihistamine and anti-allergic (montelukast) once a day at night is also beneficial. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. </s>