Another stage could possibly be an elimination diet, which you are doing with the help of your respective physician. You start by not eating a suspect food, like eggs. When your indications disappear, that strongly suggests an allergy. In 2017, the WHO Western Pacific Area passed Resolution WPR/RC68.R3 Protecting youngsters https://youtube.com/@foodintoleranceandyou2?si=hG5WCrXr0hd6KsBG