I have dry cough for last 100+ days. Periodically visited doctors who first suggested A) citrazin+ cough syrup+ montec LC for 15 days - no relief B) visited another doctor who suggested - acidity tablets suggesting that the cough might be due to acid reflux after having food - continued 15 days, no relief. C) tried Aayurvedic Divya Swasari Pravah for 1 week - no relief D) Another doctor suggested Azithramycin 500 mg.. did that course for 5 days, no relief.------ Now please suggest what to do; I live in Pune and due to Covid 19 situation here trying to avoid visiting any medical facility very often...