This is a story of someone I'm close to had to go to the doctor for post covid treatment. The issue wasn't life threatening or wasn't even very private.
So as usual we had to go through the cycle of doctor > blood tests > prescription > getting meds. Nothing fancy. While going through this cycle...
Reddit thread on the same topic
https://www.dailymail.co.uk/news/article-8192533/NHS-doctor-shares-breathing-technique-coronavirus-patients.html
involves taking five deep breaths, and ending the sixth deep breathe with a cough - covered with the hand or a tissue, of course. This would help...