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Bookmark or Share- Allergy Symptoms: Signs, Symptoms, and Treatment - WebMDAllergies are when your immune system overreacts to something called an allergen. An allergen is a foreign substance that's not harmful to most people, such as pollen or pet dander (skin...
- Allergies | Allergy Symptoms - MedlinePlusAllergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is a severe reaction that can be life-threatening. Doctors use skin and blood tests to diagnose allergies.
- Allergies Overview: Symptoms, Treatments, and More - HealthlineAn allergy is an immune system response to a foreign substance that’s not typically harmful to your body. Learn more about the types, causes, and symptoms of allergies, and how they're treated.
- Allergies - Symptoms and causes - Mayo ClinicAllergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee venom and pet dander. Allergies also can happen due to certain foods and medicines that don't cause reactions in most people.
- Allergies - Diagnosis and treatment - Mayo ClinicAllergy symptoms can range from mild to severe, even life-threatening. Find out what treatments and prevention tips can help. This content does not have an English version.
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