As these symptoms are present since about a week, you must have an X ray chest for ruling out any serious chest pathology.
Right now you can start -
Tb Azithral 500 mg once daily for 3days
Tb cetrizen 5mg once daily for 5days
Cap Nutrolin-B 1 tab daily for 5 days
Next Steps
chest xay PA view
Health Tips
if cough is productive i.e you are having sputum with cough for more than 15 days you have to go for sputum examination