@ZZE123 First, I am not a doctor. Forgive if I'm being direct but your casual mention of 'cough' appears simplistic.
From my understanding in a post cough syrup world, coughs in children normally require one of three remedies: 1) Honey 2) Antihistamine 3) Ventolin
You were given Ventoline so something is right there. Now I see Presdol is a corticosteroid with anti-inflammatory effect to suppress allergic reaction to the cough. So presuming that the cough is indicating mild asthmatic conditions, what could be so wrong?
http://www.medicinesforchildren...prednisolone-for-asthma/Is it likely the doctor was young, harrased, and not conversational?
Treatment protocols vary in regions and often you're at greater risk with a European/US health professional dealing with tropical ailments. In any case it would appear use of the word 'killing' is way over the top.