Hello doctor, It's been 4 months my daughter who is 2.5 year old is suffering from severe cough on and off. In every 10 to 15 days she is suffering from cough. Suppose today she is coughing a lot and unable to eat . Only vomiting whatever going inside n tomorrow onwards it ll reduce. With in a week she gets better then after another week again cough occurs. I visited so many doctors all says she is having allergy to air pollution. What can I do to help her. I can't see her like this suffering.