Dear Lidya,

Welcome to HealthcareMagic. Babies around this age are prone frequently to colds and coughs so, not to worry so much about the puking as it is the bodies reflex to bring out unwanted material. As adults we can easily bring out the phlegm accumalted in our lungs but babies tend to swllow and his body is naturally reacting by throwing out the phlegm which is a good sign. I advise you to kindly meet your paediatrician and take the medication he prescribes also it's better if you let your baby take smaller meals in shorter intervals than give him a large meal at a time which might further cause him discomfort, wishing your baby quick recovery and good health.