How long does it take to appear an allergic reaction such as hives after eating something?

  • 1 Answer
  • Dra. Doctuo

    In cases of urticaria simply caused by a food allergy or as a first symptom of a more serious condition that could endanger his life, called anaphylaxis, this usually occurs after 5 minutes or two hours after taking the first bite . When it appears after a few minutes the hives usually appear around the lips, eyes, face and neck. If first appears after 2 hours, the rash may appear anywhere on the body. The appearance of hives may be delayed until 8-12 hours after ingestion of food.