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Allergic Rhinitis (Nasal Allergies, Hay Fever)

Allergic rhinitis, commonly known as hay fever, is the most common allergic disorder affecting approximately 20% to 25% of the population. The most frequent symptoms are nasal congestion, itchy runny nose, itchy runny eyes, and fits of sneezing. Other frequently accompanying symptoms are headache around the eye area, drainage in the throat, fatigue, and lack of energy. There can also be intense itching of the throat and deep in the ears. The term hay fever is really a misnomer in that it is rarely due to hay, and there is no fever associated with it even though patients feel feverish as the result of the effects of histamine on the blood vessels causing them to dilate and feel warm.

Allergic respiratory symptoms are a result of histamine release along with other chemicals that are either preformed or formed in allergy cells as a result of an antigen antibody interaction.

The job of the allergist is to determine whether the above symptoms are due to allergies or not. Allergic rhinitis is typically classified as seasonal (intermittent) or perennial (persistent), or both. Frequent triggers of true hay fever symptoms include the pollens from grass, tree, and weeds, house dust mite, mold spores, and animal dander. If the above described symptoms are triggered by cleaning one’s home, playing with pets, mowing the grass, etc., then there is high likelihood that symptoms are due to allergies. If your doctor cannot make a correlation of your symptoms with the above triggers, then you need to start thinking outside the allergy box.

The correct diagnostic term for nasal symptoms not due to allergies is non-allergic or vasomotor rhinitis. We don’t understand the mechanism of this condition totally. As the name applies, it is not on an allergic basis, that is to say an antigen antibody interaction. Triggers of non-allergic rhinitis include irritants such as tobacco smoke, chemical odors, cold air, strong perfumes, etc.

Other conditions to consider in people with symptoms of a stuffy nose are hypothyroidism (low thyroid), nasal polyps, tumors (cancer), foreign bodies, infection, and deviated nasal septum. There is also another condition that goes by the acronym N.A.R.E.S. which stands for nonallergic rhinitis with eosinophilia. This means that a person can have all of the symptoms of allergies but are skin test negative, and yet paradoxically have an abundance of allergy cells called eosinophils in their nasal mucus. This condition responds nicely to intranasal steroid sprays.

The nose is the center of the universe to an allergist. If a person does not describe classic nasal symptoms, and for instance only complains that ears or eyes bother them, then the likelihood of symptoms being due to allergies is lessened.

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Food Allergy Facts and Figures – From Kids with Food Allergies and the Asthma and Allergy Foundation of America

May is Asthma and Allergy Awareness Month

What Is a Food Allergy?

  • A food allergy occurs when the body’s immune system sees a certain food as harmful and reacts by causing symptoms. This is an allergic reaction.
  • Foods that cause allergic reactions are called allergens.
  • Allergic reactions can involve the skin, mouth, eyes, lungs, heart, gut, and brain.
  • Mild and severe symptoms can lead to a serious allergic reaction called anaphylaxis [anna-fih-LACK-sis]. This reaction usually involves more than one part of the body and can worsen quickly.
  • Anaphylaxis must be treated right away with epinephrine to provide the best chance for improvement and prevent serious, potentially life-threatening complications.

How Common Are Food Allergies?

  • As of 2021, about 20 million people have food allergies in the U.S.
    • About 16 million (6.2%) U.S. adults have food allergies.
    • About 4 million (5.8%) U.S. children have food allergies.
  • In 2021, 7.6% of non-Hispanic Black children had food allergies, compared to 5.5% of non-Hispanic white children.
    • Food allergy has increased among U.S. children over the past 20 years, with the greatest increase in Black children.
  • Children with food allergies are two to four times more likely to have asthma or other allergic diseases.

What Are the Most Frequent Food Allergens?

  • Nine foods cause most food allergy reactions in the United States:

 o Milk

o Egg

o Peanut

o Tree nut (for example, almonds, walnut, pecans, cashews, pistachios)

o Wheat

o Sesame

o Soy

o Fish (for example, bass, flounder, cod)

o Shellfish (for example, crab, shrimp, scallop, clams)

  • Sesame is a rising food allergy. It impacts an estimated 1 million people in the United States.6 It was declared a major allergen in the United States in 2021.

What Is Anaphylaxis?

  • Anaphylaxis is a severe, potentially life-threatening allergic reaction. Not all allergic reactions are anaphylaxis.
  • Symptoms of anaphylaxis usually involve more than one part of the body such as the skin, mouth, eyes, lungs, heart, gut, and brain.
  • Symptoms of anaphylaxis can include:
    • Skin: hives (often very itchy), flushed skin, or rash
    • Mouth: swelling of the lips, tongue, and throat; tingling or itchy feeling in the mouth
    • Lungs: shortness of breath, trouble breathing, coughing, or wheezing o Heart: dizziness, lightheadedness, loss of consciousness, low blood pressure, shock o Stomach: cramps, vomiting, diarrhea
  • Each year in the U.S., it is estimated that anaphylaxis to food results in 90,000 emergency room visits.
    • From 2006-2015, emergency room visits from food-induced anaphylaxis in infants and toddlers more than doubled

How Are Food Allergies Managed and Treated?

  • Although new treatments are being developed, there is currently no cure for food allergies.
  • Not eating the food allergen is the primary way to prevent a reaction.
  • People with food allergies should carefully read food ingredient labels and always ask about ingredients before eating food prepared by other people.
  • Epinephrine is the first line of treatment for anaphylaxis.
  • People with food allergies should always have epinephrine with them.
  • If a person is having anaphylaxis, they should:
    • Follow their Anaphylaxis Action Plan
    •  Use their epinephrine
    •  Get emergency medical care to ensure symptoms resolve

 Are Food Allergies Outgrown?

  • Milk, egg, wheat, and soy allergies are often outgrown. Most people do not outgrow peanut, tree nut, fish, and shellfish allergies.

The post Food Allergy Facts and Figures – From Kids with Food Allergies and the Asthma and Allergy Foundation of America appeared first on Oklahoma Allergy and Asthma Clinic.

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