Suggestions please

1 month ago I tested negative for covid antigen test but symptoms were there so i took Ivermectin Doxycycline /montair Azithromycine Paracetamol 650mg Pantop D Cough syrup I get ohkk afterwards But since 10 days i have problem in my throat (tightness, shirt breathlessness not always sometimes in a day, after continuously speaking throat become tight and start painning and after doing any work in few moments only feel tired ) My nose was block for almost 1 month but now a days I'm getting sneezing...i consult a physician 2 days ago on practo he advised me to take 1.Predinisolone 2. Deriphyllin 3. Ivermectine 4.Pantop D 5.montair 6.paracetamol 7. Vitamin C All for 5 days I use hot water for drinking and gargling I take steam also My main problem is I'm feeling like suffication when throat get tighten and nose is block Earlier 6 months ago I had elegical cough also so i used hot water fir long time since from that time i feel like I have some problem in my throat .