Erythema

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Erythema
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Erythema

• Erythema is a type of skin condition which is
  identified by redness or rash. There are many
  types of erythema which involves
  photosensitivity, erythema multiforme, and
  erythema nodosum.Photosensitivity is caused by
  a reaction to sunlight and tends to occur when
  something, such as an infection or a medication,
  increases your sensitivity to ultraviolet
  radiation.Erythema multiforme is identified by
  raised spots or other lesions on the skin. It is
  generally caused by a reaction to medications,
  infections, or illness.Erythema nodosum is a
  kind of erythema that is accompanied by tender
  lumps, mostly on the legs below the knees, and
  may be caused by certain medications or diseases.

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Causes of Erythema

• In more than half of all the cases of either
  erythema multiforme or erythema nodosum, exact
  cause is still unknown. In different cases,
  number of causes may result in erythema.Erythema
  multiforme
• Infection, primarily from the herpes simplex
  virus (HSV)
• Medications, like penicillin and sulfa drugs
  anti-seizure medications non-steroidal
  anti-inflammatory drugs (NSAIDs)
• Erythema nodosum
• Infections, including mononucleosis
• Connective tissue disorders, such as lupus

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Causes of Erythema
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• Pregnancy
• Ulcerative colitis
• Bechet disease
• Crohn disease
• Medicines like birth control pills sulfa drugs

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What to expect at the Clinic

• Your doctor will perform a physical exam and may
  order a skin biopsy, throat culture, blood test,
  or x-ray to determine the type of erythema. These
  tests also may reveal any infections or
  medications that are contributing to symptoms.

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Signs Symptoms of Erythema

• Erythema multiforme
• Fever, fatigue and itching (before lesions
  appear)
• Sudden outbreak of spots, bumps, and lesions
  (usually on knees, elbows, palms, hands, and
  feet)
• Target lesions (spots surrounded by rings of
  normal and red skin, looking like a target)
• Erythema infectiosum (caused by a virus and known
  as fifth disease), rash on face and arms lasting
  about 2 weeks
• Erythema nodosum
• Fatigue, flu-like symptoms (before lesions
  appear)
• Group of nodules (small round masses) and lesions
  on shins, forearms, thighs, and trunk

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Signs Symptoms of Erythema
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• Red, painful lesions become soft and bluish, and
  fade to yellow and brown
• Joint pain
• Arthritis
• Stevens-Johnson syndrome (SJS) and toxic
  epidermal necrolysis (TEN), the most severe forms
  of erythema multiforme, have a different set of
  symptoms.Target lesions on the trunk, hacking
  cough, fever, and blisters around the mouth,
  eyes, nostrils, and anal and vaginal areas are
  the key symptoms of Stevens-Johnson syndrome
  (SJS).A person with toxic epidermal necrolysis
  (TEN) will have symptoms of Stevens-Johnson
  syndrome (SJS) that worsen to include peeling and
  detachment of the skin, pus-like infections,
  fluid loss, and even death.

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