Thanks for your question on Health Care Magic. By your history and description in my opinion, you should rule out lung infection and bronchitis in your case. Both of these are common after surgery. So better to consult pulmonologist and get done clinical examination of respiratory system, chest x ray to rule out lung infection and PFT (Pulmonary Function Test) for the diagnosis of bronchitis. You may need inhaled bronchodilators, inhaled corticosteroid (ICS) and antihistamine drugs for better symptomatic relief. All these drugs are prescribed medicines, so you need doctor s prescription for them. So better to first diagnose yourself and then start appropriate treatment. Hope I have solved your query. Wish you good health. Thanks.