My child is three years two months old, who is suffering from cough and cold from the last three months, doctor's advice is due to some allergic problem it will take long time to completely cure this problem because of low immunity power. The cough is very high and the consulted doctor prescribed following medicine. Coedeine phosphate (Morning and Evening - 3ml) and Asthalin Inhaler three times a day after completion of this course (Mont air syrup - 5ml every day for a period of two months). But the cough is repeated after one month. Pls suggest whether the same medicine shall continue or shall i consult another doctor? or pls prescribe the drug for the above problem..