What causes recurrent cough, cold and throat soreness?
Patient: Sir, my son has a problem of frequent cold, cough and sore throat. this time he has cough for more than 40 days, sometimes acute, usually dry. Montaux test is normal (6X7 mm after 48 hours). Chest x-ray, abdomen USG, IgE and ESR etc are also normal. Kindly guide be what can be cause of this cough and what can be possible line of treatment. Doctor: Hello and Welcome to ‘Ask A Doctor’ service.I have reviewed your query and here is my advice.First of all no need to worry about lung infection or tuberculosis as his chest x-ray is normal. Cough variant asthma can also cause chronic coughing. And IgE can be normal in some asthma cases. So better to consult a pulmonologist and get done PFT (Pulmonary Function Test). If PFT is showing obstructive defect then it is due to asthma. He may need inhaled bronchodilators (formoterol or salmeterol) and inhaled corticosteroid (ICS) (budesonide or fluticasone). Hope I have answered your query. Let me know if I can assist you further.Regards,      Dr. Kaushal Bhavsar