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Symptoms of Allergic reaction

Symptoms of Allergic reaction: Introduction

People who have an allergic reaction to a specific substance 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.

Common respiratory symptoms include sneezing, runny nose, nasal congestion, sinus pressure. Itchy, watery eyes and headache can occur with or without respiratory symptoms.

Hay fever is a condition in which there is an allergic reaction to pollen. Hayfever and other respiratory allergies, such as those to mold and dust, are types of allergic rhinitis. These allergic reactions can mimic the symptoms of a cold.

In some cases respiratory symptoms of an allergic reaction 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 symptoms, such as swelling of the throat, mouth, and lips, shortness of breath, abdominal pain, and nausea, vomiting, and diarrhea.

Asthma often goes hand-in-hand with having an allergic reaction. 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 coughing, 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 (hypotension), and shock....more about Allergic reaction »

Symptoms of Allergic reaction

The list of signs and symptoms mentioned in various sources for Allergic reaction includes the 16 symptoms listed below:

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Allergic reaction: Symptom Checkers

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Allergic reaction: Symptom Assessment Questionnaires

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Do I have Allergic reaction?

Allergic reaction: Medical Mistakes

Allergic reaction: Undiagnosed Conditions

Diseases that may be commonly undiagnosed in related medical areas:

Home Diagnostic Testing

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Wrongly Diagnosed with Allergic reaction?

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

Allergic reaction: 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.

Allergic reaction as a symptom:

For a more detailed analysis of Allergic reaction as a symptom, including causes, drug side effect causes, and drug interaction causes, please see our Symptom Center information for Allergic reaction.

Medical articles and books on symptoms:

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About signs and symptoms of Allergic reaction:

The symptom information on this page attempts to provide a list of some possible signs and symptoms of Allergic reaction. This signs and symptoms information for Allergic reaction has been gathered from various sources, may not be fully accurate, and may not be the full list of Allergic reaction signs or Allergic reaction symptoms. Furthermore, signs and symptoms of Allergic reaction 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 Allergic reaction symptoms.


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