Food develops when there is an IGE antibody to specific food. An allergic reaction to food occurs within minutes of eating the food and symptoms can be severe. Shellfish, peanuts, and tree nuts are the most common food allergies in adults. Milk, eggs, soy, wheat, shellfish, peanuts, and tree nuts are the most common food allergies in children.  Food allergy symptoms can occur all through the body ranging from a little bellyache to sudden death. Skin reactions are most common allergic reactions to drugs.  Allergic reactions to drugs can also affect the lungs and the liver. Fever can be a symptom of drug allergy. The most common skin symptoms are hives, patches of reddening, itching, and swelling. Millions of people have food allergies. Lots of people have stopped eating their favorite foods because they are allergic. If you are at a restaurant you have to be very careful because if you are very allergic the chefs may have a tin y bit of the thing you are allergic to on his hands and you could get a reaction. Symptoms of having a food-related allergic reaction are breaking out in hives. You usually get the hives around your eyes or lips, on the back of your neck, and all over your scalp if it is caused by food allergy. You can also get a severe headache or a really bad stomachache or you can pass out or even faint. Nut allergy is rare in oriental countries despite huge consumptions of nuts, so people from those countries, may not realize how big the problem is. Nut allergy is increasingly recognized problem, particularly for children. Nut allergy can produce; a tingling feeling in the lips or mouth, an itchy rattler rash, swelling in the throat, asthma symptoms, vomiting, cramping tummy pains, diarrhea, faintness or unconscious, death due to breathing, extreme low blood pressure.  Although a few children seemed to grow out of nut allergy, the general consensus was that it seemed to be a life-long condition.  Allergy runs in families, and nut allergy affects people with allergies in the family.