Suffering from dry cough for last one month and a half. On doctor advice taking L months tablet for last 45 days.During mid April 2020 taken the course of Azithromycin 500 for five days.During September 2019 chest x-ray was done for pre joining requirement of service and the report was normal. Despite the above treatment management there is hardly any improvement .It is pertinent to mention here that the occasional episode of coughing starts in the evening and continues till fell asleep at night. there is hardly any improvement.It is pertinent mention that the episode of coughing coughing worthwhile to mention that the episode of coughing generally starts after sunset and ck