Hello You were having cough , cold , fever and your doctor prescribed Mahacef ( cefixim , antibiotics ) , rabeprazole-domeperidone ( rabjoy-d and trustyl ( terbutalin, guaiphenesin+ambroxol+menthol ) . Still dry cough present , in spite of this that you are taking terbutaline ( a bronchodialtor in nature in your syrup). This type of dry cough may be due to these reasons , these include. 1 Asthmatic allergic bronchitis ( wheeze , shortness of breath , dry cough ) . Physical examination find out this disease .When patient with such symptoms visit my clinic I prescribe them to take monteleukast+ bambuterol tablet once or twice in day according to severity of symptoms . Also take codeine sulphate + chalorpheniramine maleate syrup ( but this is a habit forming drug , so stop at once as soon as dry cough subside). 2 Tuberculosis is the another reason of such cough but if duration of cough is 15-20 days . It is not clear in your history so take care about that. In my opinion consult a physician and deal as mentioned above.