What are examples of reactions affecting the skin due to food allergens?

Hives and eczema are direct skin reactions that commonly occur in response to food allergens. Hives, also known as urticaria, are characterized by raised, itchy welts on the skin, often appearing suddenly after exposure to an allergen. Eczema, or atopic dermatitis, involves inflammation, redness, and irritation of the skin, which can be exacerbated by food allergies in susceptible individuals. These conditions are part of the body's immune response to allergens, manifesting as skin symptoms.

In contrast, symptoms such as stomach cramps and diarrhea are gastrointestinal reactions rather than skin reactions caused by food allergens. Shortness of breath is typically associated with respiratory responses and allergic reactions impacting the bronchial system, not the skin. Swollen eyes may indicate an allergic reaction but are generally not categorized specifically as skin reactions; they may be associated more with conditions affecting the eyes and surrounding tissues due to inflammation. Thus, the symptoms of hives and eczema are clear examples of skin reactions directly linked to food allergens.