Hi, my daughter is 5 years old, she has been suffering from dry cough for the past three months (1 month in chennai and past two months in bangalore). Initially had only during night, but past 2 weeks she has at day time as well and some time cough continuously for 1 to 2 minute. We tried all the below medications with no response. Allegra, ascoril, alex -junior montclair with levocetirizine, azithromycin and even budecort nebulizer. No response at all. We consulted three different pediatrician they say lungs are clear and no abnormality in chest. All say this might be viral flu and dry cough is defense mechanism. But she is suffering for 3 months. Please if any one can help suggest?