lOMoARcPSD|17706574
NR 283 Wk2 Skin Rash
Skin Rash
A rash is an area of irritated or swollen skin. Skin rashes can develop
from contact with substances or allergic reactions. Interventions can
vary from no treatment to topical or systemic medications.
Viral, bacterial, and fungal infections will often produce rashes on the
skin. These are common causes of rashes. In addition, chemical
exposure can also cause rashes, particularly when these chemicals are
harsh on skin or mucous membranes.
Sleep and nutrition have never been known to cause rashes unless
there is allergy exposure.
A medication reaction that happens quickly after exposure is a type I
hypersensitivity reaction.
A Type IV reaction is delayed and usually related to some type of
chemical irritant exposure. An allergic contact reaction is a type 4
hypersensitivity reaction. There is no condition known as a genetically-
mediated reaction.
Clinical Manifestations Skin Rash Type
Red rash, severe itching, bumps, Dermatitis
swelling, burning, tenderness
Raised, itchy welts on the skin Hives
Painful blisters over a Shingles
dermatome (single spinal nerve
root), burning and itching
sensation
A type I hypersensitivity reaction can occur immediately and is
commonly caused by a drug allergy. With a Type IV hypersensitivity
reaction, sensitization occurs on the first exposure and, on subsequent
exposures, manifestations (rash) develop at the site a few hours after
exposure to the allergen. The allergic reaction location is usually
evident when it is related to a type IV cell-mediated hypersensitivity.
For example, if it is metal, the rash may appear where a necklace or
Downloaded by Nicholas Marks ()
, lOMoARcPSD|17706574
ring was worn or where adhesive tape was used; the tape's shape
would indicate the area of reaction.
Common rashes produce macules, papules, pustules, or other common
skin lesions. Rashes will have some unique properties based on their
location, color, and distribution. Here are some examples categorized
based on the cause.
Viral Infection
Sensation: pain
Drainage: clear
Distribution: entire body
Type of Lesion: vesicles
Bacterial Infection
Sensation: pain
Drainage: pustular
Distribution: specific area
Type of Lesion: pustule
Downloaded by Nicholas Marks ()
NR 283 Wk2 Skin Rash
Skin Rash
A rash is an area of irritated or swollen skin. Skin rashes can develop
from contact with substances or allergic reactions. Interventions can
vary from no treatment to topical or systemic medications.
Viral, bacterial, and fungal infections will often produce rashes on the
skin. These are common causes of rashes. In addition, chemical
exposure can also cause rashes, particularly when these chemicals are
harsh on skin or mucous membranes.
Sleep and nutrition have never been known to cause rashes unless
there is allergy exposure.
A medication reaction that happens quickly after exposure is a type I
hypersensitivity reaction.
A Type IV reaction is delayed and usually related to some type of
chemical irritant exposure. An allergic contact reaction is a type 4
hypersensitivity reaction. There is no condition known as a genetically-
mediated reaction.
Clinical Manifestations Skin Rash Type
Red rash, severe itching, bumps, Dermatitis
swelling, burning, tenderness
Raised, itchy welts on the skin Hives
Painful blisters over a Shingles
dermatome (single spinal nerve
root), burning and itching
sensation
A type I hypersensitivity reaction can occur immediately and is
commonly caused by a drug allergy. With a Type IV hypersensitivity
reaction, sensitization occurs on the first exposure and, on subsequent
exposures, manifestations (rash) develop at the site a few hours after
exposure to the allergen. The allergic reaction location is usually
evident when it is related to a type IV cell-mediated hypersensitivity.
For example, if it is metal, the rash may appear where a necklace or
Downloaded by Nicholas Marks ()
, lOMoARcPSD|17706574
ring was worn or where adhesive tape was used; the tape's shape
would indicate the area of reaction.
Common rashes produce macules, papules, pustules, or other common
skin lesions. Rashes will have some unique properties based on their
location, color, and distribution. Here are some examples categorized
based on the cause.
Viral Infection
Sensation: pain
Drainage: clear
Distribution: entire body
Type of Lesion: vesicles
Bacterial Infection
Sensation: pain
Drainage: pustular
Distribution: specific area
Type of Lesion: pustule
Downloaded by Nicholas Marks ()
