SJIA Rash vs. Other Rashes

A rash is typically one of the first signs of SJIA. It usually appears during fever spikes and can last anywhere from a few minutes to a few hours. Many other conditions also cause rashes. Here’s how to tell the difference between an SJIA rash and other common ones.


A spotty pale red or pinkish salmon-colored rash. Rarely occurs on the face; typically appears on chest, upper arms and upper thighs, although can be found on other parts of the body. Usually doesn’t recur in the same location. Generally flat, but can emerge in raised, small patches. Rarely itches.



Dermatitis is a general term for skin irritation and inflammation. It has many causes. Red, swollen and itchy rash. May be bumpy, scaly or patchy. Can occur anywhere on the body.


Juvenile Psoriatic Arthritis

Thick, red rash with scaly white or silvery patches. Usually found behind the ears or on the eyelids, knees, elbows and scalp. May itch and cause swelling in fingers and toes, as well as pitted or infected-looking nails.

Juvenile Dermatomyositis

Red to bluish-purple rash that typically appears in patches around nails, knuckles, elbows, knees, chest and back. Often mistaken for dry skin or eczema. Can also appear as a red or purplish rash on eyelids and cheeks. Worsens in the sun; usually accompanied by muscle weakness and/or pain.


Juvenile Scleroderma

Causes skin to harden and tighten into oval patches or in straight lines. Patches are often shiny and smooth and can be light or dark. Two types; localized and systemic. Systemic is rare in children, but tends to affect fingers, hands, forearms and face.


Juvenile Systemic Lupus Erythematosus (SLE)

Butterfly-shaped rash that spans the cheeks and bridge of the nose; resembles a sunburn. May also cause scaly, disk-shaped rash on the face, neck, ears, scalp and/or chest.



Sudden outbreak of swollen, pale red bumps or splotches, typically due to an allergic reaction. May itch, burn or sting. Can appear anywhere on the body and varies in size. May last anywhere from a few hours, up to a day.


Poison Ivy

Red, itchy streaks or patches that occur anywhere the plant has touched skin. May cause bumps or large, oozing blisters that leak yellowish pus. Can last anywhere from 10 days to six weeks.


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