Usually, vomiting in children with gastroenteritis will improve or even be cured within 3-7 days after treatment, but the exact time will depend on the severity of the child’s condition and cannot be generalized. When a child vomits due to gastroenteritis, if the vomiting symptoms are heavy, it is easy to lose a lot of water, or even cause electrolyte disorders, you need to consult a doctor in a timely manner, to clarify the specific conditions and then actively treat the symptoms. If the child is more sensitive to the drug, usually in 1-3 days can get good results, about 1 week can realize the cure. However, if the patient’s condition is more complicated and the treatment is more difficult, the specific recovery time may be appropriately prolonged. In addition, during the treatment period, children should pay attention to abdominal warmth, light, easy to digest diet, avoid eating spicy stimulating food, so as not to cause gastrointestinal burden, aggravate the condition.