Peanut Allergy | Symptoms & Causes
What are the symptoms of a peanut allergy?
Symptoms can range from mild to life-threatening. They can include:
- Itchy skin
- Hives
- A tingling feeling in the mouth or throat
- A runny nose or congestion
- Nausea
- Anaphylaxis: a life-threatening reaction that can cause trouble breathing, swelling in the throat, fainting, dizziness, and a drop in blood pressure
What are the causes of a peanut allergy?
It is not known why some people develop peanut allergies. In some cases, food allergies can run in families.
Peanut Allergy | Diagnosis & Treatments
How is a peanut allergy diagnosed?
A peanut allergy may be diagnosed using a skin test or a blood test. Your child’s doctor may also ask you to keep a food journal. If it’s not clear what food may be causing your child’s symptoms, the doctor may suggest an elimination diet, cutting out the suspected foods one at a time.
How is a peanut allergy treated?
There is currently no treatment to prevent a peanut allergy. In some cases, children outgrow it over time.
The medication epinephrine (adrenaline) is used to treat anaphylaxis. Children at risk for anaphylaxis should be prescribed an auto-injector of epinephrine and carry two doses with them at all times. Your child should use epinephrine right away if he or she has any severe symptoms, such as shortness of breath, hives, tightness in the throat, or trouble breathing or swallowing.
How we care for peanut allergies
At the Boston Children’s Hospital Food Allergy Program, our experts treat all types of food allergies, addressing medical, dietary, social, and psychological concerns. The clinic is hosted by Boston Children's Division of Allergy and Immunology, the largest provider of pediatric allergy services in the region.
