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   What causes a rash if you have an allergy?

   • Atopic dermatitis, allergic contact dermatitis, and hives are common allergy rashes. You may develop a red, itchy, and swollen rash and blisters that ooze and crust in response to an allergy. An underlying condition, such as lupus, psoriasis, or shingles, may be the culprit in some cases.

   3 Common Allergy Rashes: Pictures, Causes, Treatment - Health

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   What causes skin rashes?

   • Rashes can be caused by many things, including exposure to certain plants (poison ivy, for example), allergic reactions to a medication or a food. Rashes can also be caused by an illness such as measles or chickenpox. Eczema and hives, both of which are related to allergies, are two of the most common types of skin rashes.

   Skin Allergies | Causes, Symptoms & Treatment | ACAAI Public Website

   acaai.org/allergies/allergic-conditions/skin-allergy/

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   What causes allergies?

   • Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people. Your immune system produces substances known as antibodies.

   Allergies - Symptoms and causes - Mayo Clinic

   www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

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2. www.health.com › condition › allergy3 Common Allergy Rashes: Pictures, Causes, Treatment - Health

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   Apr 13, 2024 · The most common allergy rashes include atopic dermatitis (eczema), allergic contact dermatitis, and hives. Common symptoms include a red, itchy, and swollen rash and blisters that ooze...

   • Author: Maggie O'neill

   • Video Duration: 2 min

3. www.healthline.com › health › rashes22 Common Skin Rashes: Pictures, Causes, and Treatment

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   Mar 27, 2024 · Broadly speaking, rashes can be split into those caused by infection, allergic reactions, environmental irritation, plant reactions, and those caused by autoimmune conditions.

   • It's not so easy to identify a rash. Rashes can present as splotches, bumps, or blisters. They can be itchy, scaly, and red, and some may look diff...
   • There are many types of rashes, many of which have sub-types. Broadly speaking, rashes can be split into those caused by infection, allergic reacti...
   • There are several home remedies you can try that might help you relieve discomfort from a rash. That said, the treatment and timing of healing depe...

4. www.mayoclinic.org › diseases-conditions › allergiesAllergies - Symptoms and causes - Mayo Clinic

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   Aug 5, 2022 · A drug allergy can cause: Hives; Itchy skin; Rash; Facial swelling; Wheezing; Anaphylaxis; Atopic dermatitis, an allergic skin condition also called eczema, can cause skin to: Itch; Redden; Flake or peel; Anaphylaxis. Some types of allergies, including allergies to foods and insect stings, can trigger a severe reaction known as anaphylaxis.

5. my.clevelandclinic.org › health › diseasesSkin Rash: Types, Symptoms, Causes, Diagnosis & Treatments

   my.clevelandclinic.org › health › diseases

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   Apr 23, 2020 · The main cause is dermatitis, which is when your skin reacts to allergens or irritants. Bacteria, viruses, allergens and conditions including eczema, hives, and psoriasis can be the source of skin rashes. A variety of treatments can relieve your symptoms and get rid of the rash.

6. www.self.com › story › skin-rash-allergic-reaction6 Skin Rash Symptoms That Signal an Allergic Reaction | SELF

   www.self.com › story › skin-rash-allergic-reaction

   Jun 7, 2022 · Different allergens cause symptoms in different ways. Sometimes, allergy-induced skin rashes are caused by eating certain foods, Benjamin Ungar, MD, assistant professor of dermatology at the...

7. www.medicalnewstoday.com › articles › allergic-reactionsCauses of allergic reactions and rashes - Medical News Today

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   Nov 15, 2023 · Summary. Poison ivy, fragrances, and medications are some common substances that can cause an allergic reaction rash. The rash may vary in size and severity, depending on its cause. A person...

8. acaai.org › allergies › allergic-conditionsSkin Allergies | Causes, Symptoms & Treatment | ACAAI Public ...

   acaai.org › allergies › allergic-conditions

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   Overview. Red, bumpy, itchy skin can be irritating, painful and embarrassing. Rashes can be caused by many things, including exposure to certain plants (poison ivy, for example), allergic reactions to a medication or a food. Rashes can also be caused by an illness such as measles or chickenpox.