Dr. Alai is an actively practicing medical and surgical dermatologist in south Orange County, California. She has been a professor of dermatology and family medicine at the University of California, Irvine since 2000. She is U.S. board-certified in dermatology, a 10-year-certified fellow of the American Academy of Dermatology, and Fellow of the American Society of Mohs Surgery.
Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.
Most rashes tend to be itchy. Rashes can be further subdivided
into itchy or non-itchy.
Types of itchy rashes
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
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