My father started with his covid symtoms 23 days back..his fever was til 102..we did his ct scan and crp on day 10 ..the score came out to be 0.14 for crp..and hrct score showed 8..blood reports wer also normal..d-dimer was 2.7..after dis he was put on revroxaben..medrol 16 mg..aphyphlline..and ecospirin AV..tests repeated after 7 days..crp is again nrmal at 0.1 ..n d dimer has also become 0.2..his spo2 remains at 92/93 since day 1..and at ttimes at 93-94..the medicines are stil goin on..he is recovering nw..my question is does he need supplemental oxygen..our current pulmonologist said no..