Hello
There can be multiple reasons for this kind of cough. It could be allergic, due to acid reflux, infections, sometimes also as a side effect to BP medications, etc.
Next Steps
Consult an ENT once the lockdown period is over to determine further treatment or any investigations which need to be done
Health Tips
Follow home remedies
Drink plenty of fluids
Avoid oily,spicy,chilled foodstuffs