I am going through a chest congestion which is mainly because of cough there but it's not seasonal cough which can be easily out because it's old unhealed cough and when I start coughing sometimes it's vibrate my chest like dry cough and mostly feel cough in throat. After all test and check ups doctors said it's allergic cough and my ige level was also above 1100 . However from that time my condition is improved by 20 to 30% but not completely cured . Can you guide how can I cure this