What Is The Dosage Of Foracort 50mg?

Hi..my son 4yrs ws prescribed foracort 50mg respules twice a day for 6 mths. Wntd t know if ts alrite t gv fr so long or cn stop in btw if bttr,n also dat if gvn fr 6 mths wot r d side effects on his growth n bones. He ws a frequent wheezer but is bttr now since ts been 4 mths