Aetiology
Anaphylaxis due to allergic reaction to food is a severe and potentially life-threatening allergic reaction. It occurs when a person is exposed to a food or food component to which they are allergic. The reaction can occur within minutes or hours after eating the food. Common food allergens include milk, eggs, peanuts, tree nuts, fish, shellfish, wheat and soy.
Diagnosis
Diagnosis of anaphylaxis due to allergic reaction to food is based on a detailed history and physical examination. A skin prick test may be used to confirm the diagnosis in some cases.
Differential diagnosis
Anaphylaxis due to allergic reaction to food should be differentiated from other causes of anaphylaxis such as drugs, insect stings, latex and exercise-induced anaphylaxis.
Treatment
Treatment of anaphylaxis due to allergic reaction to food involves the immediate administration of epinephrine (adrenaline) to prevent a severe reaction. Other treatments may include antihistamines, steroids and oxygen.
Prognosis
The prognosis of anaphylaxis due to allergic reaction to food is good if it is treated promptly. If not treated promptly, it can be fatal. It is important to be aware of potential allergens and to take steps to avoid them.