Knowing what you're eating and avoiding foods or substances that you're allergic to are the best ways to combat a food allergy. Rashes caused by food allergies usually subside once the underlying reaction stops. Keeping your exposure to the allergen to a minimum is one of the best ways to help. In case of contact with suspected food, wash your hands and face, as well as any surfaces that may have been contaminated. You can prevent more rashes by doing this. It is common for people to rinse off with a quick shower. You can apply over-the-counter (OTC) creams, such as hydrocortisone if the rash is bothersome. It is also possible to treat food allergy rashes with oral antihistamines. Inflammation, itching, and overall discomfort will be relieved by these treatments. To maintain your long-term health and comfort, you might want to consult an allergist, nutritionist, or dietitian. Identifying your allergens and choosing the right OTC antihistamine can be achieved with the help of an allergist. In addition, a nutritionist or dietitian can provide useful tips for avoiding your allergy triggers while still getting the nutrition you need.