Why Does My Child Randomly Puke

Child Vomiting at Night but Fine During Day: Causes, Treatment Sometimes throwing up is a sign your child is allergic to food they’ve eaten. Throwing up may be their only symptom, but there could also be others, like trouble breathing, hives, repetitive cough,... Anything from car sickness to indigestion can cause your child to be sick. Even a prolonged bout of crying or coughing can trigger this reflex. So you may see quite a bit of vomiting in your child’s first few years! In toddlers and young children, a sudden bout of vomiting is most commonly caused by a tummy bug (gastroenteritis).