As you mentioned you are having upper respiratory tract infection which is more common in these weather conditions.
Next Steps
Drink hot water/tea/coffee
Take proper rest
Stay hydrated
Steam inhalation
TAB DOLO 650 SOS (IF FEVER IS THERE)
SYRUP ASCORIL D 10ML 1-1-1 FOR 5 DAYS
TAB EBAST DC 0-0-1 FOR 3 DAYS
ASCORIL COFGELS SOS (WHEN YOU EXPERIENCE THROAT IRRITATION NOT MORE THAN 4 IN A DAY)
Health Tips
If fever persist or worse, if you experience symptoms of chills, vomiting, body pain kindly get these tests
CBC
MPFT
DENGUE NS1
CHIKENGUNYA IGM
and kindly connect.