See,these days even the RT PCR are coming negative for covid.Its better to get HRCT Chest done to check for pneumonia.Do regular temperature charting with spo2.If the CT shows irregularities,then its better to go to a chest physician or flu clinic near you.
Next Steps
Take antiallergic levocetrizine at night.It can cause some drowziness and cough syrup for dry cough twice daily.And paracetamol for fever and stay hyderated.