Urgent Covid Help/Advice Needed.

Hello respected doctors, Since last 10 days, my father is facing an issue. Whenever he tries to swallow something, he feels like something is stuck in his throat. We tried steaming and gargal but it didn't help. He doesn't have any pain and neither cough and also doesn't have any fever or any other issue. But this issue is since last 10 days. A doctor asked us for ct scan but we don't want to go for that as we fear that hospitals could be covid spreaders. In my family(who don't live with us), had covid in past and they asked my father following medicines: 1) Azithromycin 500mg 5days. 2) Invermycin 12mg 5days. Can expert doctors here please advice me if I can give these medicines with vitamin tablets? As I haven't done ct scan or other test (which I'm reluctant for), will this harm my father with any side affects? Kindly help me on this.