hi .. good morning.. my son is 3.4 years old.. everything is going well but one major problem is that he don't want to brush his teeth.. I tried in many different ways but no use. he feels vomit if I put brush in his mouth.. I changed toothpaste even I changed brushes all types of brushes.. even electric brush no use.. please help me . give me some suggestions so that I can make him to brush his teeth.. if any mouth wash for kids so that at night I can protect his teeth.