my son is 7 years old he was having severe cough and congestion doctor prescribed nebulizer, maxtra 5ml and grilinctus bm 5ml thrice a day. his condition became a little better. after 3 days we went to the doctor he said that congestion is still there and prescribed medrol 4mg twice a day to my son. I was reading about the medicine and it says that the medicine is a steroid and used for certain kind of cancers. i am really worried. can someone please suggest if I should give medrol 4mg or not please help