Respected sir i am very sorry for this .as mentioned by it seems that you have some viral infection . That may be associated with bacterial infection of lung.most of time they resolve in a period of 1 week with rest and symptomatic treatment of running nose fever
.but in case If it is persisting and is very troublesome then proper work up is required to reach the diagnosis . Some bleed test x ray
chest and sputum examination are must to be done. Initially these may come normal because of viral cause but repeat test will definitely show some cause.in my opinion if cough and all other symptoms are persisting then you must consult your physician for further evaluation and management . Hope everything will be alright .