eMedicine Specialties > Emergency Medicine > Dermatology
Erythema Multiforme: Treatment & Medication
Updated: Feb 24, 2009
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Treatment
Prehospital Care
In severe cases, prehospital personnel may need to treat respiratory complications and fluid imbalances aggressively, in the same manner as thermal burns.
Emergency Department Care
Mild cases of erythema multiforme (EM) require only symptomatic treatment, which may include analgesics or NSAIDs; cold compresses with saline or Burrow's solution; topical steroids; and soothing oral treatments such as saline gargles, viscous lidocaine, and diphenhydramine elixir. SJS and TEN can be life threatening and should be treated in a manner similar to thermal burns.
- Aggressive monitoring and replacement of fluids and electrolytes are of paramount importance.
- Provide supportive respiratory care, including suctioning and postural drainage, as needed.
- Administer empiric antibiotics if clinical evidence of secondary infection exists. Most authorities advise against routine use of prophylactic antibiotics.
- Use analgesics as needed to control pain, which may be severe.
- Avoid systemic corticosteroids in minor cases. In severe cases, their use is controversial because they do not improve prognosis and may increase risk of complications.
- General measures
- Treatment of underlying cause
- Prompt withdrawal of possibly causative drugs. Studies have shown that prompt withdrawal of causative drugs will reduce risk of death by about 30% per day.
- Symptomatic treatment for mild cases
- For more severe cases, meticulous wound care and use of Burrow's or Domeboro solution dressings may be necessary.
- Oral lesions: Oral rinsing with warm saline or a solution of diphenhydramine, Xylocaine, and Kaopectate for symptomatic relief.
Consultations
- A dermatologist may be helpful with diagnosis, performance of skin biopsies if indicated, and assistance with care of admitted patients.
- Ophthalmology consultation should be obtained whenever the eyes are involved.
- Internists, critical care specialists, or pediatricians as needed for admitted patients.
Medication
Steroid use is controversial. Patients who have herpes-induced erythema multiforme (EM) may benefit from acyclovir.
Antivirals
The goal in use of antivirals is to shorten clinical course, prevent complications, prevent development of latency and/or subsequent recurrences, decrease transmission, and eliminate established latency.
Acyclovir (Zovirax)
Reduces duration of symptomatic lesions. Indicated for patients presenting within 48 h of experiencing the rash. Patients on acyclovir experience less pain and faster resolution of cutaneous lesions.
Acyclovir demonstrates inhibitory activity directed against both HSV-1 and HSV-2; infected cells selectively take it up.
Adult
600-800 mg PO bid for 7-10 d; initiate immediately upon the onset of symptoms of recurrent episodes
Pediatric
10 mg/kg or 500 mg/m2 IV q8h
Concomitant use of probenecid or zidovudine prolongs half-life; may increase CNS toxicity of acyclovir
Documented hypersensitivity
Pregnancy
B - Fetal risk not confirmed in studies in humans but has been shown in some studies in animals
Precautions
Caution in renal failure or when other nephrotoxic drugs are coadministered
More on Erythema Multiforme |
| Overview: Erythema Multiforme |
| Differential Diagnoses & Workup: Erythema Multiforme |
Treatment & Medication: Erythema Multiforme |
| Follow-up: Erythema Multiforme |
| Multimedia: Erythema Multiforme |
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References
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Further Reading
Keywords
erythema multiforme, erythema multiforme major, erythema multiforme minor, EM major, EM minor, Stevens-Johnson syndrome, acute mucocutaneous hypersensitivity reaction, skin eruption, toxic epidermal necrolysis, TEN, centripetal spread, vesiculobullous lesions, herpessimplex infection, Mycoplasma pneumoniae, drug eruptions
Treatment & Medication: Erythema Multiforme