My 2yr old son has just been prescribed a steroid inhaler due a persistent cough since Christmas. Its mainly at night but also throughout the day. Thing is, I'm not totally convinced it's asthma as no history of it in our family, he's not wheezy etc. The Doctor didn't listen to sons chest and he does have a cold at the mo. We've been told to use this inhaler for 2wks and if his cough goes then it definitely is asthma. If it doesn't then its not. Is this a normal diagnosis and is there any harm in using it if it's not asthma? Confuuused!!!