My father has penomnia from 45 days after covid 19,he was on oxygen,he got discharged 15 days back due to increased infection he got admitted to hospital on 24.06.2021.his d dimer when we did CT scan (24.06.2021)was 4000.today d dimer shows 900.
CRP 110 was there on 24/6 today's it's 89.
Can some experts tell me what to do next plz.
Oxygen required is 5ltr now current.