Sensitivity of food.. Expansion of blood vessels due to the secretion of histamine and increase in the exit of fluids from blood to tissues

Food Allergy:
A - the emergence of symptoms of the digestive system such as nausea, vomiting and abdominal colic immediately after eating a meal.
B - In addition to the emergence of itching and Attas and obstruction of the nose and redness of the skin and varicose veins and angioedema Angioedema which is a swelling in the mouth and lips and throat
C - These symptoms result from the expansion of blood vessels as a result of the secretion of histamine and increase in the discharge of fluid from the blood to the tissues.