How does urticaria appear repeatedly on the body to do

The cause of urticaria is not very clear, but it is found to be related to many factors, such as food, drugs, pollen, dust, infection, etc. If urticaria repeatedly shows up to check allergens, if there are allergic substances to prevent contact. Then check for chronic diseases, such as hyperthyroidism, diabetes, tuberculosis, liver disease, kidney disease, etc. If there are chronic diseases, urticaria will not show up after treatment. If no allergens are found, and no chronic diseases are found, it is necessary to adjust the immunity of the body, such as reasonable diet, sleep guarantee, proper exercise, urticaria will naturally improve after immunity improvement.