My 21 months baby started with cold,then cough,fever. It has been 5 days,fever has gone but he coughs severely at night.at day coughing is not that frequent. He is not eating, except breastmilk. Doc has prescribed tixylix, azi antibiotic. also he is being given asthalin nebulization twice a day(3 day course). how many days will he take to recover & will breast milk be sufficient.