Reactions usually occur within minutes after exposure. Peanut allergy signs and symptoms 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 throat
Shortness of breath or wheezing
Runny nose
Exposure
Exposure to peanuts can occur in various ways:
Direct contact. = eating peanuts or peanut-containing foods.
Cross-contact. = unintended introduction of peanuts into a product. food exposed to peanuts during processing or handling.
Inhalation.= if you inhale dust or aerosols containing peanuts, from peanut flour or peanut oil cooking spray.
Facts about Allergies and Children
4%-8% of children affected by food allergies
90% of food allergies are cow’s milk, egg, soy, wheat, peanuts, tree nuts fish and shellfish
Peanut allergies come in early life and normally does not go away in adulthood
People who have peanut allergies react to even a crumb of a peanut and those who are highly allergic react to even smaller traces of peanuts
Peanut allergies are diagnosed through a skin prick test or fluoroenzyme immunoassy
Symptoms can be shown in 1 minute or a few hours after ingestion
More information at https://www.cmaj.ca/content/168/10/1279.full