My 2 year old always coughs at around 9-10pm, it’s a bad cough and makes him vomit 2x per week. He has always been a reflux baby. We’ve seen paediatricians and dieticians. No one has an answer. They just say there is nothing obviously wrong. Any suggestions from people who may have experienced something similar? I’m assuming heartburn irritating his throat while laying down but not sure how to deal with it without drugs. Other suggestions welcome