Cough issue persists for upto 3 months. You should monitor saturation. If that is above 95 , everything is normal. Let your mind and body rest. They have overcome an acute illness that induces a stress response. Let your body heal at its own pace. Improve diet and begin mild exercise to improve cardio respiratory fitness.

Enough mucous is a sort of cilia reworking post covid so no worries Have mucolytic stuffs For further query call

If your cough is associated with sputum. F Go for a montoux test.

Pulmoclear one tablet twice daily after food for 5 days Steam inhalation thrice daily for 5 days