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Symptoms of Allergies

Symptoms of Allergies: Introduction

People who have allergies can experience a wide variety of symptoms that can affect the respiratory system, skin, gastrointestinal system, and in severe cases, the cardiovascular system. Symptoms can occur alone or in combination with other symptoms.

Respiratory symptoms include sneezing, runny nose, itchy, watery eyes, nasal congestion, sinus pressure, and headache. Hay fever is a condition in which there is an allergy to pollen. Hayfever and other respiratory allergies, such as those to mold and dust, are types of allergic rhinitis. These allergies can mimic the symptoms of a cold.

Respiratory symptoms of allergies and can also occur in combination with allergic symptoms of the skin. These include rashes, pruritus (itching), swelling and hives. Allergies are also associated with some skin conditions, such as eczema and contact dermatitis.

Food allergies can present with respiratory symptoms in addition to other symptoms, such as swelling of the throat, mouth, and lips, shortness of breath, abdominal pain, nausea, vomiting and diarrhea.

Having allergies often goes hand-in-hand with asthma. Allergens can trigger an asthma attack which results in constriction of the airways in the lungs, inflammation, and a build-up of mucus. This results in wheezing, shortness of breath and cough, which can become severe and life-threatening if not treated promptly.

A life-threatening allergic reaction is called an anaphylactic reaction and requires immediate medical intervention. Symptoms include wheezing, shortness of breath, swelling of the lips, mouth and throat, difficulty swallowing or speaking, confusion, a severe drop in blood pressure and shock....more about Allergies »

Allergies symptoms: Respiratory allergies can produce a wide variety of symptoms that can occur alone or in combination with other symptoms. They include sneezing, runny nose, itchy, watery eyes, nasal congestion, sinus pressure, and headache.

In some cases respiratory symptoms can become severe and include wheezing, shortness of breath, swelling of the lips, mouth and throat. Any allergic reaction can potentially produce respiratory symptoms and can also occur in combination with other allergic symptoms, including rashes, pruritis (iching), swelling and hives....more about Allergies »

Symptoms of Allergies

The list of signs and symptoms mentioned in various sources for Allergies includes the 33 symptoms listed below:

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Allergies: Symptom Checkers

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Allergies: Symptom Assessment Questionnaires

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Allergies: Complications

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Research More About Allergies

Do I have Allergies?

Allergies: Medical Mistakes

Allergies: Undiagnosed Conditions

Diseases that may be commonly undiagnosed in related medical areas:

Home Diagnostic Testing

Home medical tests related to Allergies:

Wrongly Diagnosed with Allergies?

The list of other diseases or medical conditions that may be on the differential diagnosis list of alternative diagnoses for Allergies includes:

Allergies: Research Doctors & Specialists

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Other Possible Causes of these Symptoms

Click on any of the symptoms below to see a full list of other causes including diseases, medical conditions, toxins, drug interactions, or drug side effect causes of that symptom.

Article Excerpts About Symptoms of Allergies:

Something in the Air Airborne Allergens: NIAID (Excerpt)

The signs and symptoms are familiar to many:

Sneezing often accompanied by a runny or clogged nose
Coughing and postnasal drip
Itching eyes, nose, and throat
Allergic shiners (dark circles under the eyes caused by increased blood flow near the sinuses)
The "allergic salute" (in a child, persistent upward rubbing of the nose that causes a crease mark on the nose)
Watering eyes
Conjunctivitis (an inflammation of the membrane that lines the eyelids, causing red-rimmed, swollen eyes, and crusting of the eyelids).

In people who are not allergic, the mucus in the nasal passages simply moves foreign particles to the throat, where they are swallowed or coughed out. But something different happens to a person who is sensitive to airborne allergens.

As soon as the allergen lands on the mucous membranes lining the inside of the nose, a chain reaction occurs that leads the mast cells in these tissues to release histamine and other chemicals. These powerful chemicals contract certain cells that line some small blood vessels in the nose. This allows fluids to escape, which causes the nasal passages to swell, resulting in nasal congestion.

Histamine also can cause sneezing, itching, irritation, and excess mucus production, which can result in allergic rhinitis (runny nose). Other chemicals made and released by mast cells, including cytokines and leukotrienes, also contribute to allergic symptoms. (Source: excerpt from Something in the Air Airborne Allergens: NIAID)

Allergies: NWHIC (Excerpt)

Common symptoms for allergies include:

  • Sneezing, often accompanied by a runny or clogged nose

  • Coughing and postnasal drip

  • Itching eyes, nose, and throat

  • Watering eyes

  • Allergic dermatitis: an itchy rash. (The most common skin condition in children ages 11- 14.)

  • Allergic shiners: dark circles under the eyes caused by increased blood flow near the sinuses

  • Allergic salute: persistent upward rubbing of the nose that causes a crease mark on the nose

  • Conjunctivitis: an inflammation of the membrane that lines the eyelids, causing red-rimmed, swollen eyes, and crusting of the eyelids. Commonly known as pink eye.

(Source: excerpt from Allergies: NWHIC)

Allergies: NWHIC (Excerpt)

Allergy symptoms often resemble a cold, however the cold seems to linger. Symptoms include a runny nose, itchy eyes, headaches, and sinus pain. Usually there is no fever. It is important to see a doctor about any respiratory symptoms that last longer than a week or two. Properly trained physicians can recognize patterns of potential allergens. (Source: excerpt from Allergies: NWHIC)

Medical articles and books on symptoms:

These general reference articles may be of interest in relation to medical signs and symptoms of disease in general:

About signs and symptoms of Allergies:

The symptom information on this page attempts to provide a list of some possible signs and symptoms of Allergies. This signs and symptoms information for Allergies has been gathered from various sources, may not be fully accurate, and may not be the full list of Allergies signs or Allergies symptoms. Furthermore, signs and symptoms of Allergies may vary on an individual basis for each patient. Only your doctor can provide adequate diagnosis of any signs or symptoms and whether they are indeed Allergies symptoms.

 

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