There is no such thing as how long a person with hives should avoid food, once allergic foods are found it is recommended that they be strictly avoided for life, but it is not recommended that they be avoided blindly and indiscriminately in order to avoid malnutrition.
Urticaria is associated with infections, immune disorders, contact with certain substances or consumption of certain food allergies. The lesions can usually take the form of an eruption-like change, and the patient is accompanied by an intense itching sensation.
For patients with urticaria, it is necessary to check the food allergens in time, for the test results of the allergic food or food that causes discomfort after eating should be avoided, to avoid aggravating the condition, when the lesions get better, it is also recommended to strictly avoid allergic food, otherwise it may lead to recurrent urticaria.
For patients with urticaria, it is recommended to abstain from food that they are allergic to in a timely manner, but it is not recommended to abstain blindly, and it is also recommended to use medication in a timely manner under the guidance of a professional doctor.