Hi
Nothing much to worry about cough. It will be resolved soon,I hope you are having proper medication for the same along with Multivitamins support.
I am enlisted basic minimum test to Cross check the current status.
Till that You can go with Betadine Gargle three times a day.
Next Steps
CBC with ESR
HRCT Chest
COVID RTPCR
Health Tips
Plenty of Fluid
protein rich diet
For further management you can consult me via practo App.
wishing you Speedy Recovery.