Rash Symptoms and Signs
Most rashes tend to be itchy. Rashes can be further subdivided
into itchy or non-itchy.
Types of itchy rashes
- hives (urticaria)
- bug bites
- scabies (mite infestation)
- eczema (skin allergy)
(although these may at times also be itchy)
Rashes come in many different colors, sizes, shapes, and
patterns. Most rashes tend to be red because of skin inflammation. Rashes may be
- flat (macular),
- raised (papular),
- small pus bumps (pustular),
- small clear blisters (vesicular),
- red or pink,
- silvery white scales
- annular (circular with central clearing, like in ringworm
- eczematous (dry, scaly, rough, and thickened), or
- Contact dermatitis is by far the most common
cause of noninfectious rash. It includes dermatitis as from poison ivy/oak as
well as allergic skin rashes. External agents such as nickel can typically
produce an inflammatory reaction over a period of time, causing itching, rash, or
burning of the skin. Over the short term, this type of rash may cause
superficial peeling, whereas more chronic cases cause thickened patches of skin.
- Psoriasis typically looks like thickened patches of dry red skin, particularly
on the knees, elbows, and nape of the neck. There are many types of psoriasis,
and this type of rash may uncommonly involve the entire body.
- Rosacea is a
type of adult acne that may cause facial flushing, small pink bumps, and redness
of the cheeks and nose.
- Lupus-related skin findings are known to become
exacerbated by sunlight exposure. Lupus can present as red, raised patches or a
generalized rash on the nose, ears, cheeks, and base of the nail folds.
- Seborrheic dermatitis or seborrhea is a common rash that is characterized by
redness and scaling of the face, ears, eyebrows, and scalp.
- Herpes produces groups or clusters of small water
blisters on a red base.
- Ringworm (Tinea) leads to dry, red patches with dry
skin flakes. Often there is central clearing, creating a donut pattern
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