Today most schools and day-care centres are peanut-free zones because of the hazards they pose for some children. Peanut allergies are now one of the most common causes of food-related deaths. Peanuts are in fact part of the legume family, along with peas and beans. Not actually nuts, peanuts don't belong in the tree-nut category, which includes cashews, almonds, pecans, walnuts, beechnuts, Brazil nuts and pistachios.

While tree-nut allergies are less common than peanut allergies, about 3.3 million people in the United States have an allergy to peanuts and or tree nuts.

Desserts and snacks are often laden with nuts, particularly walnuts. That used to mean sufferers had to forgo most treats. However, today there's a myriad of products on the market -- and pastries to purchase -- for kids of all ages who can't tolerate nuts. Sunflower-seed butter is a great substitute for peanut butter,

An allergic response to peanuts usually occurs within minutes after exposure, and symptoms range from mild to severe. Peanut allergy symptoms can include:

Skin reactions such as hives, redness or swelling

Itching or tingling in or around the mouth and throat

Digestive problems such as diarrhea, stomach cramps, nausea or vomiting

Tightening of the chest

Shortness of breath or wheezing

Runny or stuffy nose

Anaphylaxis
Peanut allergy is one of the most common causes of anaphylaxis, a medical emergency that requires treatment with an epinephrine (adrenaline) injector (EpiPen, EpiPen Jr or Twinject) and a trip to the emergency room.

Anaphylaxis signs and symptoms can include:

Constriction of airways

Swelling of your throat that makes it difficult to breathe

A severe drop in blood pressure (shock)

Rapid pulse

Dizziness, lightheadedness or loss of consciousness

When to see a doctor
Talk to your doctor if you think you could be allergic to peanuts, especially if you had a severe reaction.

Seek emergency treatment if you have a severe reaction to peanuts, especially if you have any signs or symptoms of anaphylaxis. Call your local emergency number for severe dizziness, severe trouble breathing or loss of consciousness.