Welcome to HCM
Your son is suffering from asthma in acute attack oral steroids
are very useful,other drugs like asthalin
is Beta 2 agonist .
Disease itself may cause sleep problem due to breathlessness and also could be side effect of drugs which are used .
It is preferable to take inhalation therapy
in the form of nebulization or inhalers.
Once acute episode is over you can go for allergy testing and immunotherapy
If not cured he can always be controlled an can lead normal life
Good luck to him.