Signs of an Allergic Reaction on the Arms
Because your hands and arms are so busy getting you around in the world, carrying your burdens and helping you work, their skin is a primary contact point for allergens. In addition, they may be the breakout spots for allergies to things you've ingested by eating or breathing. Dermatologists and allergists suggest you try symptomatic treatment first, but go for help before you resort to scratching. That only opens your skin to infection on top of the allergy 3.
Hives
Hives, formally known as urticaria, are swellings on the skin, sometimes with blistery pustules on top, that can come up almost anywhere on the body, including the arms and especially the soft insides of elbows and upper arms. They are not always allergic, but can also be signs of stress or illness 3. As allergic symptoms, hives can also point either to contact with an allergen or to ingested allergens, including medicines such as penicillin. Hives on your arms could alert you to a food or contact allergy with the potential to turn life-threatening, or they could warn you to search out the source of mold or another inhaled allergen in your home.
- Hives, formally known as urticaria, are swellings on the skin, sometimes with blistery pustules on top, that can come up almost anywhere on the body, including the arms and especially the soft insides of elbows and upper arms.
- As allergic symptoms, hives can also point either to contact with an allergen or to ingested allergens, including medicines such as penicillin.
Contact Dermatitis
Severe Stress-Induced Allergic Reactions
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Skin can become inflamed when you encounter an allergenic oil or dust, such as the oil of poison ivy or poison oak. The reaction can range from a slightly itchy redness to large and spreading blisters, depending on your exposure and sensitivity. Try to identify what you've contacted, and wash the area and any clothes that may carry the allergen. You also could be allergic to something in the detergents or skin-care products you use 3. For example, chamomile and calendula are common botanical oils that can cause contact dermatitis in people who sneeze at ragweed pollen.
- Skin can become inflamed when you encounter an allergenic oil or dust, such as the oil of poison ivy or poison oak.
Eczema
Also known as atopic dermatitis, eczema is more common on the elbows than elsewhere on adults' arms. It can reflect an allergy to something in the air such as pet dander or house dust, or to something that's been rubbed over the elbows, such as wool or soaps. It generally appears as skin that's extremely dry, to the point of cracking and bleeding, and may also itch. You can ease the symptoms with hypoallergenic creams or with topical steroids.
- Also known as atopic dermatitis, eczema is more common on the elbows than elsewhere on adults' arms.
- It can reflect an allergy to something in the air such as pet dander or house dust, or to something that's been rubbed over the elbows, such as wool or soaps.
Other Reactions
Can an Allergic Reaction Look Like Bites?
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Almost any allergy or sensitivity can show up on the arms 2. The good thing is that you're likely to notice it on yourself or a loved one. Pay attention to the speed with which any rash or reaction spreads. For example, a severe latex allergy can start as swollen, red hands that have been in gloves or just spots on the skin where it was touched. It can progress rapidly, however, to anaphylactic shock that requires immediate medical care. A sensitivity to adhesives such as you find in bandages is less usually urgent but can be upsetting. Switch to paper tape or self-adhering tape.
- Almost any allergy or sensitivity can show up on the arms 2.
- A sensitivity to adhesives such as you find in bandages is less usually urgent but can be upsetting.
Related Articles
References
- American Academy of Dermatology: Hives — Who Gets and Causes
- American Academy of Dermatology: Sensitive Skin
- American Academy of Allergy Asthma & Immunology: Allergic Skin Conditions
- The American College of Allergy, Asthma, and Immunology. Skin Allergies.
- Eichenfield LF, Ahluwalia J, Waldman A, et al. Current guidelines for the evaluation and management of atopic dermatitis: A comparison of the Joint Task Force Practice Parameter and American Academy of Dermatology guidelines. J Allergy Clin Immunol. 2017;139(4S):S49-S57. doi:10.1016/j.jaci.2017.01.009
- Smith AR, Knaysi G, Wilson JM, Wisniewski JA. The Skin as a Route of Allergen Exposure: Part I. Immune Components and Mechanisms. Curr Allergy Asthma Rep. 2017;17(1):6. doi:10.1007/s11882-017-0674-5
- Bernstein JA, Lang DM, Khan DA, et al. The diagnosis and management of acute and chronic urticaria: 2014 update. J Allergy Clin Immunol. 2014;133(5):1270-7. doi:10.1016/j.jaci.2014.02.036
- Siegfried EC, Hebert AA. Diagnosis of Atopic Dermatitis: Mimics, Overlaps, and Complications. J Clin Med. 2015;4(5):884-917. doi:10.3390/jcm4050884
- Fonacier L, Bernstein DI, Pacheco K, et al; American Academy of Allergy, Asthma & Immunology; American College of Allergy, Asthma & Immunology; Joint Council of Allergy, Asthma & Immunology. Contact dermatitis: a practice parameter-update 2015. J Allergy Clin Immunol Pract. 2015;3(3 Suppl):S1-39. doi:10.1016/j.jaip.2015.02.009
- Tilles SA. Allergic Skin Disease and the Practicing Allergist: Growing Unmet Need, New Science, and New Treatments. Immunol Allergy Clin North Am. 2017;37(1):xiii-xiv. doi:10.1016/j.iac.2016.10.002
Writer Bio
Barbara Kellam-Scott has written since 1981 for print publications including "MassBay Antiques" and the award-winning corporate science magazine "Bellcore EXCHANGE." She writes as an advocate and lay Bible scholar in the Presbyterian Church. Kellam-Scott holds a Bachelor of Arts in intercultural studies from Ramapo College of New Jersey and conducted graduate work in sociology, theology and Biblical Hebrew.