On the basis of your sign and sputym - after covid infection mucous can be formed if you haven't follow good life style ....
Like- take sufficient amount of water .
Take less spicy and fatty food
Take more protein food in diet.
After covid infection body will take time to achieve previous immunity so life style should be good.
For removing the cough - you should take consultation and give complete history to doctor then take treatment .
Next Steps
Some test also required to make correct diagnosis as CT of Chest and CBC and ESR .
Health Tips
Please keep postive attitude to fight any disease and problem of your life