I'm covid positive and under prescriptio

I was having a little breathing issue from 8th April, so I took Azithromycin 250mg dose 2 times a day for 5 days, my covid report came on 12, and according to my prescription my doc said if you have taken azithromycin don't continue now, the day before yesterday and yesterday I had a little discomfort (a little pain and congestion) on the left side chest and my left arm was in little pain too .. so as I read about Azithromycin .. I took 250mg tab yesterday in morning and evening .. I'm relaxed today .. my question is do I need to continue Azithromycin for some more days .. or is there anything else ... And yes steam inhalation helps a lot .. please suggest .. I have shared my prescription that I'm taking..