20 days after covid. Mentioned as 0-6)

Hello i have been found covid positive on 24th march and after 20 days still i am getting positive report.  just to check that everything is ok i got my CBC, CRP , ESR done. everything looking okay.yesterday i went for chest x ray as i have slight discomfort in chest but my spo2 varies from 97-99.also i have very low dry cough. In Xray ut mentioned prominence of broncho vascular markings. Should i worry and should i start to take antibiotics .please suggest .one more thing after 20 days also sometimes my temp goes up to 99.2 or 99.4 but it comes back to 98.4 with out medication.this is a regular trend. Attaching reports for better understanding .please let me know what to do next. ESR - 18 CRP - 4 ( in report normal range is mentioned as 0-6)