My daughter six years old suffering from wheezing cough past one year..we consulted pulmonologist and he suggested to give sereflo Inhaler for six months.. Dosage reduced gradually.. Now sixth month giving one puff at night only.. after starting inhaler treatment cough was reduced.. No vomit and all.. For the past three days it was severe.. continuous cough with vomit..we gave levolin inhaler as prescribed by Dr.. What's the reason for this . Still giving inhaler at night .6 months course not yet completed.. Please advice . How to cure this permanently?