My husband is 32 years old. Once in a year at the beginning of rainy he catches cough and it longs for a month. Last year it lasted for 1 month then ENT specialist said there is an infection in the throat and prescribed medication, later cured. This year also the same thing has happened, he has been coughing since last three weeks. He consulted doctor. Fever and sneezing are cured but cough has not stopped. Is there any home medication or tablet which is effective to cough??? Why does this happens every time???