Dear doctor,I am experiencing wet cough since 20 days,I have reported this to the doctors too...there is no any symptoms of tuberculosis .I have checked my chest via x ray too but I haven't checked.my blood.I am normal too but when my throat itches and I began coughing I cough for a long time. then I brathe continuously like a aasthma patient ......what could be the cause and how to solve?????