Post Covid Nasal Congestion. Is 3. 42?

Dear doctor, my father has recovered from covid 19 after staying in hospital on oxygen and steroids for 13 days. After discharge he's experienced nasal congestion which he's able to clear during steaming. The far vision has also lessened a bit but not continuously dropping. The steroids were tapered after discharge and last dose was on 31st May. He's still continuing with Clopivas AP 75mg OD for 2 more days. My main concern is if its a symptom of Mucormycosis and if it needs urgent attention. He's not experiencing any other symptoms of Mucormycosis except nasal congestion, nasal discharge is white in color, referring to advisory released by ICMR. Kindly suggest what step should be taken. Ddimer and CRP were done yesterday. Ddimer is 0.31 and CRP is 3.42