Hi sir, I am suffering from dry coughing last 6 years & takes many medicines but not get relief. Recently I have consultant a pulmonary specialist and done all test which he had prescribed. All things are normal but IGE is 294.8 IU/ML Further my coughing became aggravated in open environment & taking cold drink, cold water & others cold things. Some times I face continuous coughing stock. Some one said this is symptoms of bronchial asthma. Please suggest better medicine.