Good day girls, I wanted to ask, could anyone have had this happen wit…

Good day girls, I wanted to ask, could anyone have had this happen with their child? A one year old is coughing up until vomiting, specifically at night after feeding. The cough itself is wet, the first two days there was a temperature after taking antibiotics the temperature stopped appearing but here's the cough...and also phlegm in the child, it scares me. Coughing up until vomiting only at night and only after feeding. During the day they eat wet coughs without an attack or vomiting.