I am having cough, since last 20 days. earlier it was, dry cough, but now phelgym is also there, along with pain in thoroat,. i have taken various medicines during this, period, doctor advised blood test, it was normal tgen she advised x ray. in that she said there is some infection. she adivised micropime inj for three days dunring moring and evening, after that tbere is slight improvement but still the problem persists