My baby is 40 days old and he suffered from cough, colds and fever. We brought him to a pedia and she gave him oral drops of paracetamol, ambroxol HCL, zedittap, and ephron. After 7 days of medication his condition partially improved, he has no fever and but still he has colds and what we are concerned more is his cough. Its not frequent but when he coughs its like a cough of an adult. We feel a lot of pleghm in his chest but feel helpless as to how can he expel the pleghm. He sleeps well and drink his meal frequently, he has a good apetite. He does not struggle in breathing and his fingers dont have dark colored as sign of low oxygen. He is very normal except for the cough. How can we help him expel the pleghm in his chest.