my 5 year old son is vomiting once in a day from 2 days.. today his vomiting is so sticky.. what might be the reason

A. Hi I am sure your child is facing some issue which is why your child is vomiting like that and since you are mentioning now it has been sticky then there can be a 1% chance of your child having stomach infection or any other issue related to that area kindly get a check with your