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2025-04-08T17:59:49Z

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← Older revision		Revision as of 17:59, 8 April 2025
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			{{SI}}
			{{Infobox medical condition
			\| name = Rash
			\| image = [[File:Severerash.jpg\|250px]]
			\| caption = A severe rash on the skin
			\| field = [[Dermatology]]
			\| symptoms = [[Redness]], [[itching]], [[swelling]], [[blisters]], [[scaling]]
			\| complications = [[Infection]], [[scarring]]
			\| onset = Varies depending on cause
			\| duration = Can be [[acute]] or [[chronic]]
			\| causes = [[Allergies]], [[infections]], [[autoimmune disorders]], [[irritants]]
			\| risks = [[Contact with allergens]], [[poor hygiene]], [[genetic predisposition]]
			\| diagnosis = [[Physical examination]], [[medical history]], [[skin biopsy]]
			\| differential = [[Eczema]], [[psoriasis]], [[urticaria]], [[dermatitis]]
			\| prevention = Avoidance of known triggers, [[proper skin care]]
			\| treatment = [[Topical creams]], [[antihistamines]], [[corticosteroids]], [[antibiotics]]
			\| medication = [[Antihistamines]], [[corticosteroids]], [[antibiotics]]
			\| frequency = Common
			\| deaths = Rarely life-threatening
			}}
	A rash is a noticeable change in the texture or color of the skin. The skin may become red, bumpy, itchy, or otherwise irritated. Rashes are usually caused by skin inflammation, which can result from a variety of conditions, ranging from mild allergies to serious systemic diseases.		A rash is a noticeable change in the texture or color of the skin. The skin may become red, bumpy, itchy, or otherwise irritated. Rashes are usually caused by skin inflammation, which can result from a variety of conditions, ranging from mild allergies to serious systemic diseases.
	~~[[File:Severerash.jpg\|thumb\|Severerash]]~~
	==Introduction==		==Introduction==
	Rashes encompass a wide range of conditions, and they can manifest in many forms and affect any part of the body. They're typically associated with skin irritation, which can arise from several underlying causes. Rashes can be localized to one area or widespread, and their characteristics can offer clues to their etiology.<ref>[[Kanerva, L.]], et al. (2010). Handbook of Occupational Dermatology. Springer Berlin Heidelberg.</ref>		Rashes encompass a wide range of conditions, and they can manifest in many forms and affect any part of the body. They're typically associated with skin irritation, which can arise from several underlying causes. Rashes can be localized to one area or widespread, and their characteristics can offer clues to their etiology.<ref>[[Kanerva, L.]], et al. (2010). Handbook of Occupational Dermatology. Springer Berlin Heidelberg.</ref>

	==Types of Rashes==		==Types of Rashes==
	*Rashes can take on many forms, including:		*Rashes can take on many forms, including:
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	*Petechial Rashes: These are small, red or purple spots on the skin caused by minor bleeding from broken capillary blood vessels.		*Petechial Rashes: These are small, red or purple spots on the skin caused by minor bleeding from broken capillary blood vessels.
	*Purpuric Rashes: Similar to petechial rashes but larger, they are also caused by the leakage of blood from capillaries into the skin.<ref>[[Parsons, J. M.]]. (1998). Rash Diagnosis. InnovAiT, 1(5), 364–371.</ref>		*Purpuric Rashes: Similar to petechial rashes but larger, they are also caused by the leakage of blood from capillaries into the skin.<ref>[[Parsons, J. M.]]. (1998). Rash Diagnosis. InnovAiT, 1(5), 364–371.</ref>

	==Causes==		==Causes==
	*Rashes can be caused by numerous factors, such as:		*Rashes can be caused by numerous factors, such as:
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	*Irritants and Toxins: Exposure to certain substances can cause rashes, such as detergents, cosmetics, and certain plants.		*Irritants and Toxins: Exposure to certain substances can cause rashes, such as detergents, cosmetics, and certain plants.
	*Heat: Heat rash, or prickly heat, is caused by blocked sweat glands.<ref>[[Johansen, J. D.]], et al. (2015). Contact Dermatitis. Springer, Berlin, Heidelberg.</ref>		*Heat: Heat rash, or prickly heat, is caused by blocked sweat glands.<ref>[[Johansen, J. D.]], et al. (2015). Contact Dermatitis. Springer, Berlin, Heidelberg.</ref>

	==Symptoms==		==Symptoms==
	Symptoms associated with rashes can include redness, itching, swelling, blistering, scaling, and pain. The specific symptoms can depend on the underlying cause of the rash.		Symptoms associated with rashes can include redness, itching, swelling, blistering, scaling, and pain. The specific symptoms can depend on the underlying cause of the rash.

	==Diagnosis==		==Diagnosis==
	*Diagnosis of a rash typically involves a physical examination and a review of the patient's medical history. The appearance and location of the rash, along with any accompanying symptoms, can often suggest the cause.		*Diagnosis of a rash typically involves a physical examination and a review of the patient's medical history. The appearance and location of the rash, along with any accompanying symptoms, can often suggest the cause.
	*In some cases, additional tests may be needed, such as skin biopsy, allergy testing, or blood tests.<ref>[[Bolognia, J. L.]], et al. (2017). Dermatology. Elsevier.</ref>		*In some cases, additional tests may be needed, such as skin biopsy, allergy testing, or blood tests.<ref>[[Bolognia, J. L.]], et al. (2017). Dermatology. Elsevier.</ref>

	==Treatment==		==Treatment==
	*Treatment of a rash primarily involves addressing the underlying cause. This might involve topical creams or ointments, oral medications, or avoiding specific triggers.		*Treatment of a rash primarily involves addressing the underlying cause. This might involve topical creams or ointments, oral medications, or avoiding specific triggers.
	*For symptomatic relief, treatments may include antihistamines to reduce itching, moisturizers for dry skin, or corticosteroids to reduce inflammation.<ref>[[Fitzpatrick, T. B.]], et al. (2017). Dermatology Secrets Plus. Elsevier.</ref>		*For symptomatic relief, treatments may include antihistamines to reduce itching, moisturizers for dry skin, or corticosteroids to reduce inflammation.<ref>[[Fitzpatrick, T. B.]], et al. (2017). Dermatology Secrets Plus. Elsevier.</ref>

	==Prevention==		==Prevention==
	Prevention strategies depend on the cause of the rash but may include good skin hygiene, avoiding known irritants or allergens, and staying up to date with immunizations.		Prevention strategies depend on the cause of the rash but may include good skin hygiene, avoiding known irritants or allergens, and staying up to date with immunizations.

	==See Also==		==See Also==
	* [[Dermatitis]]		* [[Dermatitis]]
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	* [[Urticaria]]		* [[Urticaria]]
	* [[Allergy]]		* [[Allergy]]

	==References==		==References==
	<references />		<references />

Prab at 20:18, 16 June 2023

2023-06-16T20:18:25Z

New page

A rash is a noticeable change in the texture or color of the skin. The skin may become red, bumpy, itchy, or otherwise irritated. Rashes are usually caused by skin inflammation, which can result from a variety of conditions, ranging from mild allergies to serious systemic diseases.
[[File:Severerash.jpg|thumb|Severerash]]
==Introduction==
Rashes encompass a wide range of conditions, and they can manifest in many forms and affect any part of the body. They're typically associated with skin irritation, which can arise from several underlying causes. Rashes can be localized to one area or widespread, and their characteristics can offer clues to their etiology.<ref>[[Kanerva, L.]], et al. (2010). Handbook of Occupational Dermatology. Springer Berlin Heidelberg.</ref>

==Types of Rashes==
*Rashes can take on many forms, including:
*Maculopapular Rashes: These are flat and red rashes that often include raised areas.
*Urticarial Rashes: Also known as hives, these appear as raised, itchy patches of skin.
*Vesicular Rashes: These are characterized by small, fluid-filled blisters.
*Petechial Rashes: These are small, red or purple spots on the skin caused by minor bleeding from broken capillary blood vessels.
*Purpuric Rashes: Similar to petechial rashes but larger, they are also caused by the leakage of blood from capillaries into the skin.<ref>[[Parsons, J. M.]]. (1998). Rash Diagnosis. InnovAiT, 1(5), 364–371.</ref>

==Causes==
*Rashes can be caused by numerous factors, such as:
*Infections: Bacterial, viral, or fungal infections can cause rashes. Examples include measles, chickenpox, and ringworm.
*Allergic Reactions: Rashes can result from contact with allergens, like certain plants (poison ivy), chemicals, food, or medication.
*Autoimmune Diseases: Certain autoimmune diseases, like lupus or psoriasis, can lead to rashes.
*Irritants and Toxins: Exposure to certain substances can cause rashes, such as detergents, cosmetics, and certain plants.
*Heat: Heat rash, or prickly heat, is caused by blocked sweat glands.<ref>[[Johansen, J. D.]], et al. (2015). Contact Dermatitis. Springer, Berlin, Heidelberg.</ref>

==Symptoms==
Symptoms associated with rashes can include redness, itching, swelling, blistering, scaling, and pain. The specific symptoms can depend on the underlying cause of the rash.

==Diagnosis==
*Diagnosis of a rash typically involves a physical examination and a review of the patient's medical history. The appearance and location of the rash, along with any accompanying symptoms, can often suggest the cause.
*In some cases, additional tests may be needed, such as skin biopsy, allergy testing, or blood tests.<ref>[[Bolognia, J. L.]], et al. (2017). Dermatology. Elsevier.</ref>

==Treatment==
*Treatment of a rash primarily involves addressing the underlying cause. This might involve topical creams or ointments, oral medications, or avoiding specific triggers.
*For symptomatic relief, treatments may include antihistamines to reduce itching, moisturizers for dry skin, or corticosteroids to reduce inflammation.<ref>[[Fitzpatrick, T. B.]], et al. (2017). Dermatology Secrets Plus. Elsevier.</ref>

==Prevention==
Prevention strategies depend on the cause of the rash but may include good skin hygiene, avoiding known irritants or allergens, and staying up to date with immunizations.

==See Also==
* [[Dermatitis]]
* [[Eczema]]
* [[Psoriasis]]
* [[Urticaria]]
* [[Allergy]]

==References==
<references />
* [[Category:Dermatology]]
* [[Category:Skin conditions]]
* [[Category:Symptoms and signs]]
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Rash - Revision history

Prab: CSV import

Prab at 20:18, 16 June 2023