Hi welcome to the health care magic Mostly upper respiratory tract infections are viral that is can be from adenovirus like infection... If in 5 to 6 days improvement not seen then it could be allergic or bacterial and then further course with anti allergic and antibiotic drugs needed... For determining cause whether it is bacterial or allergic inflammation investigation done with.... . 1.CBC 2.AEC 3.ASO titre 4.Throat swab Hence if you are not improving better to investigate further with above work up I mentioned Do steam inhalation three times a day Salt water gargle done Vitamin C lozenges useful Avoid excess spicy foods and fatty meals Take one tsp turmeric powder with hot milk daily Hope I have solved your query