Post covid. Or anything else?

Hi All, Hope you are safe.. My husband had tested positive 1 month back on 14th April. He had fever n cough. Spo2 was 98/99 during whole 3 weeks. As his ct score was 11/25 with Corads 6, he was given antibiotics, steroids, anticoagulant etc. He came out of isolation on 23rd day after his cough reduced. Didn't repeat rtpcr as per doc advice before ending isolation. It's already a month now. He discontinued steroids 2 days back n is still on anticoagulant for 6 weeks. But since last 2 days he is having headache and yesterday evng his axillary temp was 99. But since today mrng it's 98.7, with mild headache. We had given his blood for test. Crp seems marginally high. Please see d attached report 1 month back n done today and advise. Is the fever due to steroids discontinuation? Or anything else?