Whether a food allergy can go away on its own depends on aspects such as the individual’s body type and allergy condition. If the allergy is mild, such as itchy skin, most patients can go away on their own after stopping the use of the allergic food or. A small number of patients may need to take medication to reduce their allergy due to their body type. If allergies occur and are accompanied by rashes, itching, or even throat edema or shock, they should not subside on their own and should go to the hospital for emergency treatment as soon as possible to control the changes in their condition. In addition, patients should try to avoid allergens in their diet and do not eat foods that can easily cause allergies. Patients are advised to do more exercise to improve their immunity. During the allergy period, they should have a light diet, pay attention to skin hygiene, and go to the hospital dermatology department for examination if necessary.