Heat urticaria

Specialty| Dermatology
Symptoms| Stinging red skin following heat exposure[1]
Frequency| Rare[1]

Heat urticaria is a type of urticaria that presents with stinging red skin following intense heat exposure.[1] It typically occurs around five minutes after the skin has been exposed to a temperature above 43 °C (109 °F).[1] The skin appears burned, swollen, and indurated.[1] There may be associated weakness, cramps, watery mouth, flushing or collapse.[1]

Treatment may involve heat desensitisation.[1]

It is a rare type of urticaria.[1]

## See also[edit | edit source]

* List of cutaneous conditions

## References[edit | edit source]

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "7. Erythema and urticaria". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 152\. ISBN 978-0-323-54753-6. Archived from the original on 2022-10-01. Retrieved 2022-10-01.

## External links[edit | edit source]

Classification|

* OMIM: 191950

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Urticaria and erythema

Urticaria
(acute/chronic)|

| Allergic urticaria|

* Urticarial allergic eruption

|

Physical urticaria|

* Cold urticaria
* Familial
* Primary cold contact urticaria
* Secondary cold contact urticaria
* Reflex cold urticaria

* Heat urticaria
* Localized heat contact urticaria
* Solar urticaria

* Dermatographic urticaria
* Vibratory angioedema
* Pressure urticaria
* Cholinergic urticaria
* Aquagenic urticaria

Other urticaria|

* Acquired C1 esterase inhibitor deficiency
* Adrenergic urticaria
* Exercise urticaria
* Galvanic urticaria
* Schnitzler syndrome
* Urticaria-like follicular mucinosis

Angioedema|

* Episodic angioedema with eosinophilia
* Hereditary angioedema

Erythema|

| Erythema multiforme/
drug eruption|

* Erythema multiforme minor
* Erythema multiforme major
* Stevens–Johnson syndrome, Toxic epidermal necrolysis
* panniculitis (Erythema nodosum)
* Acute generalized exanthematous pustulosis

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Figurate erythema|

* Erythema annulare centrifugum
* Erythema marginatum
* Erythema migrans
* Erythema gyratum repens

Other erythema|

* Necrolytic migratory erythema
* Erythema toxicum
* Erythroderma
* Palmar erythema
* Generalized erythema

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