Nose heaviness. Why it's like this?

I'm using thyroid 50mg tablets daily. Symptoms on 14th May. Tested positive on 20th May. In result my Ct value is ORF -17, S-17, N-17. Now I'm taking Doxycycline, paracetamol, pantoprozole 40mg, tap- methylprednisolone 8mg, cap becosules zinc for 5 days morning and night.  No fever. Spo2 is normal.. I have few doubts plz help. 1. I'm at home isolated only. I forgot to put doxycycline for 2times. Yesterday night only I started that. Will it be any problem. 2. My nose is very heaviness.. able to do breathing. But When I talk or seeing down whatever doing my nose is very heavy. Because of my nose heaviness I feel mild headpain. I feel like very disturbed. Yesterday my doctor asked to take fluka 150 mg daily for 3days morning and night. Only problem for me is nose heaviness only. Why it's like this? Taking 3times steaming. I can't do anything with this. Sometimes paining also. Plz help . Thanks