
1) Efflorescence 2) Hives 3) Hives, medically 4) Hypersensitivity reaction 5) Nettle rash 6) Rash 7) Roseola 8) Skin rash 9) Urtication
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https://www.crosswordclues.com/clue/urticaria

1) Hives 2) Uredo 3) Urtication
Found on
https://www.crosswordclues.com/clue/urticaria

• (n.) The nettle rash, a disease characterized by a transient eruption of red pimples and of wheals, accompanied with a burning or stinging sensation and with itching; uredo.
Found on
http://thinkexist.com/dictionary/meaning/urticaria/

Itchy, raised red areas on the skin. Urticaria are caused by a reaction to certain foods, drugs, infections, or emotional stress. Also called hives.
Found on
http://www.cancer.gov/dictionary?expand=U

<dermatology> A transient condition of the skin, usually caused by an allergic reaction, characterised by pale or reddened irregular, elevated patches and severe itching, hives. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973

(ur″tĭ-kar´e-ә) a vascular reaction of the upper dermis marked by transient, slightly elevated patches called wheals that are redder or paler than the surrounding skin; there often is severe itching. Common causes include foods, drugs, infections, and emotional stress. See Atlas 2. Called also hives. ad...
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http://www.encyclo.co.uk/local/21001

an itchy rash resulting from the release of histamine from the mast cells
Found on
http://www.encyclo.co.uk/local/22239

A skin rash caused by the sudden release of histamine
Found on
http://www.gadsbywicks.co.uk/uploaded/3822.pdf

A condition characterised by itching wheals
Found on
http://www.generalandmedical.com/glossary/index_alpha_Results.html?mode=U

Also known as Hives, is an allergic reaction from food or medication where red, itchy, and swollen spots appear on the surface of the skin. Please contact a dermatologist for treatment for this type of condition.
Found on
http://www.robertmillermd.com/derma_glossary.html

cnidosis; urticaria A transient condition of the skin, usually caused by an allergic reaction, characterized by pale, or reddened, irregular, elevated patches and severe itching, hives.
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http://www.wordinfo.info/words/index/info/view_unit/511/
(also known as hives) The eruption of red marks on the skin that are usually accompanied by itching. This condition can be caused by an allergy (e.g., food, vaccine, drugs), stress, infection, or physical agents (e.g., heat, cold).
Found on
https://vaccine-safety-training.org/glossary.html

an allergic reaction in which itchy white lumps surrounded by areas of inflammation appear on the skin; commonly called 'hives'
Found on
https://www.encyclo.co.uk/local/20875

Irritant skin condition characterized by itching, burning, stinging, and the spontaneous appearance of raised patches of skin. Treatment is usually by antihistamines or steroids taken orally or applied as lotions. Its causes are varied and include allergy and stress
Found on
https://www.encyclo.co.uk/local/21221

An eruption of transient pruritic, elevated papules and plaques, often with erythematous, sharply-defined borders and pale centers (wheals). Each lesion resolves within twenty-four hours. Often seen as a hypersensitivity reaction to drugs, physical triggers (sun, cold, pressure, heat), and foods. Also known as hives.
Found on
https://www.encyclo.co.uk/local/21553

n. inflammation of the skin, typically with numerous weals and itching
Found on
https://www.encyclo.co.uk/local/21568

An allergic reaction of the skin characterised by reddened irregular, elevated patches and severe itching. Also called hives.
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https://www.encyclo.co.uk/local/22445

Hives, an eruption of wheals.
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https://www.encyclo.co.uk/local/22445
(also called hives) a condition in which red, itchy, and swollen areas appear on the skin
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https://www.encyclo.co.uk/local/23275
(also known as hives) Inoculation with a vaccine for the purpose of inducing immunity.
Found on
https://www.futurelearn.com/info/courses/the-role-of-vaccines-in-preventing

a transient condition of the skin, usually caused by an allergic reaction, characterized by pale or reddened irregular, elevated patches and severe itching; hives.
Found on
https://www.infoplease.com/dictionary/urticaria

Also known as Hives, is an allergic reaction from food or medication where red, itchy, and swollen spots appear on the surface of the skin.
Found on
https://www.soothems.com/pages/dermatology-glossary-of-terms

a skin condition, commonly known as hives, characterized by the development of itchy, raised red lumps surrounded by an area.
Found on
https://www.stanfordchildrens.org/en/topic/default?id=glossary---allergy-as
(also called hives) a condition in which red, itchy, and swollen areas appear on the skin - usually as an allergic reaction from eating certain foods or taking certain medications.
Found on
https://www.stanfordchildrens.org/en/topic/default?id=pediatric-glossary---

Hives, often a sign of an allergic response.
Found on
https://www.timelessessentialoils.com/pages/timeless-holistic-health-glossa
No exact match found.