How Is a Nut or Peanut Allergy Diagnosed?
If your doctor thinks you might have a nut or peanut allergy, he or she will probably send you to see a doctor who specializes in allergies. The allergy specialist will ask you about past reactions and how long it takes between eating the nut and getting the symptom, such as hives. The allergist also may ask about whether anyone else in your family has allergies or other allergy-related conditions, such as eczema or asthma. Researchers aren’t sure why some people have food allergies and others don’t, but they often run in families. The allergist may also want to do a skin test. This is a way of seeing how your body reacts to a very small amount of the nut that is giving you trouble. The allergist will use a liquid extract of the nut that seems to be causing you trouble. (A liquid extract is a liquid version of something that usually isn’t liquid.) He or she also may use liquid extracts of other common allergy-causing foods or substances. The doctor will drop a little of the liquid extr
