Covid related issue. What we should do?

My mother has shown symptoms of Fever and cough 6 days ago and tested Covid positive .Fever was normal on 4th day and 5th day but now on 6th day she has 100 fever. She is breathing fine but he SPO2 sometimes goes to 92- 93 and again raises to 95-97. The SPO2 has been fluctuating from day 3. She has wet cough and lost her taste. She is walking fine. She has been prescribed fabiflu 800, Ivermectin 12 mg, cee plus, allegra 120 mg, Ascoric syrup. When her SPO2 showed low the first day we consulted Doctor and they said if she is breathing normal then it's okay. She has lost her taste and appetite as well. She is slightly hypertensive and her HBA1C is 6.7. Her d dimer is 900 and CRP is 4.8 . Please suggest what we should do