Allergic reactions to foods occur when the body reacts violently to foods or other seemingly benign substances. The immune system treats these as they are a foreign body, causing an allergic reaction to that substance. Reactions to food will occur within two hours of ingesting it and cause symptoms such as hives, itching, and swelling of areas including the face, mouth and tongue. Other symptoms include nausea, vomiting, diarrhea, and abdominal pain. Less common symptoms that have been reported include sinus congestion, headaches, frequent earaches and bedwetting.

(more…)