Chronic Urticaria
Also known as: Chronic urticaria, Chronic spontaneous urticaria, CSU, Chronic idiopathic urticaria, Recurrent hives, Chronic nettle rash, Urticaria with angio-oedema, Wheals, Urticaria wheal-and-flare
Chronic urticaria is the recurrence of itchy weals (hives), with or without angio-oedema, for six weeks or longer. In its most common form, chronic spontaneous urticaria, no external trigger is identified, and the condition is understood as an immune-mediated skin disorder driven by mast-cell activation and histamine release; many cases involve functional autoantibodies. Typical weals are itchy, raised, pale-pink swellings that move around the body, each resolving within 24 hours, while angio-oedema causes deeper swelling of the lips, eyelids or tongue that can take up to 72 hours to settle. Second-line management includes carefully titrated, high-dose non-sedating antihistamines; omalizumab, cyclosporin or other immunomodulating treatment is reserved for refractory disease. Chronic urticaria is not usually caused by allergy testing targets, and elimination diets without specialist guidance are not recommended [1][2]. In Chinese medicine, chronic urticaria overlaps with the classical categories of Fēng Zhěn Blocados 風疹 and Fēng Tuán 癘团, with mechanisms including Wind-Heat or Wind-Cold bound at the skin, Heat at the Blood level, Spleen Qi deficiency failing to consolidate the exterior, Blood deficiency generating internal Wind, and Qi stagnation or Blood stasis failing to nourish the skin. Pattern differentiation must account for prescribed antihistamine use, which can mask flare appearance, and for contact, physical and inducible subtypes, which have distinct triggers. Acupuncture and herbal treatment are adjunctive to conventional medical management and do not replace medical assessment or specialist escalation [1][2].
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Lifestyle & Diet
- •Take prescribed non-sedating antihistamines as directed; do not stop or double them without medical advice.
- •Keep a symptom diary of flares, foods, temperatures, stress and medications to identify genuine patterns.
- •Avoid overheating, hot showers, alcohol and spicy food when these trigger flares.
- •Wear loose, soft clothing and avoid tight straps or pressure, particularly in pressure-induced subtypes.
- •Manage psychological stress with appropriate support, since stress is commonly associated with flare timing.
- •Do not undertake unguided elimination diets — medically supervised investigation is preferred [1][2].
Cautions & Contraindications
- •Do not use acupuncture in place of emergency assessment for breathing difficulty, throat or tongue swelling, collapse or any suspected anaphylaxis.
- •Do not treat over acutely inflamed, infected or severely scratched skin.
- •Do not use herbal formulas containing restricted or toxic ingredients; verify all prescriptions against Australian TGA requirements.
- •Do not claim that acupuncture or herbal medicine cures chronic urticaria; frame all benefits as adjunctive symptom support.
When to reassess or seek care again
- •Initial: confirm that weals or angio-oedema have recurred for at least six weeks before working with a chronic urticaria diagnosis.
- •Initial: document flare frequency, typical weal duration, body areas affected and provoking factors.
- •Initial: clarify whether the patient has been assessed for inducible urticaria subtypes (cold, pressure, cholinergic, solar) and whether antihistamines or other medicines are in use.
- •Ongoing: track flare frequency and intensity with a diary so treatment effects can be judged objectively rather than anecdotally.
- •Ongoing: review whether specialist referral or biologic therapy has been considered when high-dose antihistamines fail [1][2].
Frequently Asked Questions
What counts as chronic urticaria?+
Recurrent itchy weals, with or without angio-oedema, lasting six weeks or longer. When no external trigger is identified it is called chronic spontaneous urticaria. Individual weals usually resolve within 24 hours [1][2].
Can acupuncture replace antihistamines?+
No. Non-sedating antihistamines, dose-titrated by a medical prescriber, are the standard first-line treatment. Acupuncture may be used alongside them for symptom support, and patients should not stop prescribed medication without medical advice [1][2].
Which TCM patterns are most common in chronic urticaria?+
Wind-Heat at the skin, Wind-Cold bound at the exterior, Heat at the Blood level, Spleen Qi deficiency, and Blood deficiency generating internal Wind. Long-standing cases often combine deficiency and stasis mechanisms.
When should a patient be referred urgently?+
Immediately for breathing difficulty, throat or tongue swelling, collapse or fainting. Promptly for weals that last over 24 hours in one spot, leave bruising, or occur with fever, weight loss or joint pain [1][2].
Is herbal treatment safe for chronic urticaria?+
When prescribed by a qualified practitioner with review of allergies, pregnancy, concurrent medicines and TGA restrictions, yes. Formulas should avoid restricted ingredients such as Má Huáng and Fù Zǐ, and claims should stay within AHPRA advertising standards.
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Sources & Further Reading
Clinical guidance, red flags and safety notes on this page draw on the following current sources alongside the classical references above.
- European Academy of Allergology and Clinical Immunology · 2022
International consensus on urticaria definition, classification, stepwise management and biologic escalation.
- Australasian Society of Clinical Immunology and Allergy (ASCIA) · 2024
Australian guidance on chronic urticaria assessment, antihistamine titration and specialist referral.
- DermNet NZ · 2024
Clinical description of weal morphology, duration thresholds and differential diagnosis including urticarial vasculitis.
- Australian Government Department of Health · 2024
Australian public-health information on urticaria symptoms and when to seek urgent care.
- Classical Chinese medicine formulary tradition · 2026
Historical basis for Guì Zhī Tāng and later Wind-dispelling dermatological formulas used in traditional practice.
- Australian Health Practitioner Regulation Agency · 2026
Advertising and claims obligations for registered Australian practitioners.
Educational reference for licensed practitioners. Not a substitute for individual clinical assessment. Refer to conventional care for any red-flag or undiagnosed presentation.