my son of 4 and a half month old is suffering from cold , cough and chest congestion for the last one week. Doc. prescribed him T minic syrup 3.5 ml for 3 times a day , nasoclear drop, one drop for four times, Asthalin syrup, 2 ml for 3 times a day. This dosages are for five days. Is it ok to use Asthalin syrup for paed.