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Red rash
Rashes
Itchy skin
Raised bumps on skin
Red bumps on skin
Redness of the skin
Red skin rash all over the body
Swelling under skin
Lips are swollen and painful
Difficulty breathing
Face is swollen
Skin rashes that are itchy
Not seeing your symptoms? No worries!
What is Acute Urticaria?
Acute urticaria is a sudden onset of hives that lasts less than six weeks. It is often triggered by allergic reactions to foods, medications, insect stings, or infections. Acute urticaria can affect individuals of any age and typically resolves once the underlying cause is identified and addressed.
Typical Symptoms of Acute Urticaria
- Skin over the entire body is red
- Itchy skin
- Skin itching that worsens at night
- Multiple areas of skin redness or red spots
- Mild itch
- Hives or raised rashes
- Bumpy rash that appeared, then rapidly spread to the rest of the body
- Swelling in the affected area
Diagnostic Questions for Acute Urticaria
Your doctor may ask these questions to check for this disease:
- Is your whole body red?
- Do you have itchy skin?
- Does your skin itch at night?
- Do you have multiple red areas or spots on your skin?
- Do you have a constant, mild itch?
Treatment of Acute Urticaria
Treatment for acute urticaria usually involves the use of antihistamines to relieve itching and reduce hives. If the reaction is severe or associated with anaphylaxis, emergency treatment with epinephrine may be required. Identifying and avoiding the trigger is essential for effective management, and in some cases, corticosteroids may be prescribed for more severe reactions.
Reviewed By:
Eisaku Kamakura, MD (Pulmonology)
Dr. Kamakura graduated from the Tokyo Medical and Dental University, School of Dentistry, and the Niigata University School of Medicine. He trained at Yokosuka Kyosai Hospital and held positions in the Respiratory Medicine departments at Yokosuka Kyosai Hospital, Tokyo Medical and Dental University, Ome City General Hospital, and Musashino Red Cross Hospital. In 2021, he became the specially appointed assistant professor at the Department of General Medicine, Niigata University School of Medicine.
Unnati Patel, MD, MSc (Family Medicine)
Dr.Patel serves as Center Medical Director and a Primary Care Physician at Oak Street Health in Arizona. She graduated from the Zhejiang University School of Medicine prior to working in clinical research focused on preventive medicine at the University of Illinois and the University of Nevada. Dr. Patel earned her MSc in Global Health from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. She went on to complete her Family Medicine residency in Chicago at Norwegian American Hospital before completing a fellowship in Leadership in Value-based Care in conjunction with the Northwestern University Kellogg School of Management, where she earned her MBA. Dr. Patel’s interests include health tech and teaching medical students and she currently serves as Clinical Associate Professor at the University of Arizona School of Medicine.
Content updated on Jan 23, 2025
Following the Medical Content Editorial Policy
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- Itchy
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- Itch is mild
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- Itch
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Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1References
Radonjic-Hoesli S, Hofmeier KS, Micaletto S, Schmid-Grendelmeier P, Bircher A, Simon D. Urticaria and Angioedema: an Update on Classification and Pathogenesis. Clin Rev Allergy Immunol. 2018 Feb;54(1):88-101. doi: 10.1007/s12016-017-8628-1. PMID: 28748365.
https://link.springer.com/article/10.1007/s12016-017-8628-1Antia C, Baquerizo K, Korman A, Bernstein JA, Alikhan A. Urticaria: A comprehensive review: Epidemiology, diagnosis, and work-up. J Am Acad Dermatol. 2018 Oct;79(4):599-614. doi: 10.1016/j.jaad.2018.01.020. PMID: 30241623.
https://www.jaad.org/article/S0190-9622(18)30139-7/fulltextSaini S, Shams M, Bernstein JA, Maurer M. Urticaria and Angioedema Across the Ages. J Allergy Clin Immunol Pract. 2020 Jun;8(6):1866-1874. doi: 10.1016/j.jaip.2020.03.030. Epub 2020 Apr 13. PMID: 32298850.
https://www.jaci-inpractice.org/article/S2213-2198(20)30329-9/fulltextKayiran MA, Akdeniz N. Diagnosis and treatment of urticaria in primary care. North Clin Istanb. 2019 Feb 14;6(1):93-99. doi: 10.14744/nci.2018.75010. PMID: 31180381; PMCID: PMC6526977.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6526977/Ensina LF, Min TK, Félix MMR, de Alcântara CT, Costa C. Acute Urticaria and Anaphylaxis: Differences and Similarities in Clinical Management. Front Allergy. 2022 Apr 15;3:840999. doi: 10.3389/falgy.2022.840999. PMID: 35958944; PMCID: PMC9361476.
https://pmc.ncbi.nlm.nih.gov/articles/PMC9361476/