Exanthematous drug eruptions. • «rashes». • Urticaria immediate reactions. • Delayed appearing exanthems with cell infiltration it is frequent. Therapy for exanthematous drug eruptions is supportive, involving the administration of oral antihistamines, topical steroids, and moisturizing. Morbilliform or exanthematous drug reaction (maculopapular drug eruption). Authoritative facts about the skin from DermNet New Zealand.

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If you have any concerns with your skin or its treatment, see a dermatologist for advice. Differential diagnosis includes measlesrubellascarlet fevernon-specific toxic erythema associated with infectionKawasaki diseaseconnective drugg disease and acute graft-versus-host disease. Often, however, these patients have been on multiple drugs, adxlah complicate the clinical picture. Drug eruptions — Medscape Reference Books about skin diseases: Drugs can then be classified as unlikely or likely causes based on:.

Morbilliform drug eruption usually first appears on the trunk and then spreads to the limbs and neck. In the early phase, it may not be possible to clinically distinguish an uncomplicated morbilliform eruption from other more serious cutaneous adverse reactions SCAR.

On rechallenge with a drug that the patient has been sensitized to in deug past, the eruption may occur within 24 hours. Other than this, systemic involvement is not a feature.

Prescribers must be vigilant. A multitude of drugs have been implicated in MDE.

Characteristic findings on physical examination Initially, there drjg erythematous blanching macules and papules, which may coalesce to form larger macules and plaques. It is not possible to completely prevent morbilliform eruptions. An uncommon finding is the development of erythroderma in patients in whom the offending drug is not stopped.


Morbilliform drug eruption is the most common form of drug eruption.

No sponsor or advertiser has participated in, approved or paid for the content provided by Decision Support in Medicine LLC. The starting date of each new drug is documented together with the onset of the rash. MDE was noted to be the most common drug eruption in these patients in a systematic review in The face may be involved, but mucous membranes are typically spared.

In cases where the offending drug is not able to be discontinued, a discussion should be held regarding the risks and benefits of this, both with the dermatologist and the primary subspecialty team concerned. They mainly affect people prescribed beta-lactam antibiotics penicillinscephalosporinssulfonamides, allopurinol, anti-epileptic drugs and nonsteroidal anti- inflammatory drugs NSAID.

Morbilliform drug eruption [exanthematous drug eruption; maculopapular drug eruption, “drug rash” Are You Confident of the Diagnosis? The presence of symptoms and signs that suggest GVHD, such as diarrhea, and liver function abnormalities should be looked for.

Med Clin North Am. Eosinophilia is supportive but not diagnostic. Here, consultation with subspecialty teams is needed to assist in complex medication decisions.

Morbilliform Drug Eruptions (exanthematous drug eruption; maculopapular drug eruption, “drug rash”)

Medical treatment Stop offending drug Exanthrmatous or high-potency topical steroids Antihistamines. Numerous other drugs have been reported to cause morbilliform drug eruptionsincluding herbal and natural therapies. Morbilliform drug eruption is a form of allergic reaction. A sandpaper-like eruption accompanies a sore throat and fever.


Morbilliform drug reaction | DermNet NZ

However, this is not always seen. On re-exposure to the causative or related drug, skin lesions appear within 1—3 days. An in-depth history and a drug chart may be required to assist in identification of the offending erupiton. Many drugs can trigger this allergic reaction, but antibiotics are the most common group.

The rash may be associated with a mild fever and itch. To identify the possible causative drug, a drug calendar, including all prescribed and over-the counter products, may be helpful. There may be vascular dilatation and mild edema in the upper dermis. What is the Cause of the Disease?

In typical cases, a biopsy is not required. The term “morbilliform” connotes a measles-like: The offending agent should be discontinued if possible. This occurs secondary to hemostatic pressure that is typically maximal on the legs. Treatment Options Treatment options are summarized in Table I. The diagnosis of drug rash with eosinophilia and systemic symptoms DRESS should be ruled out in patients with a high fever, or with facial edema or lymphadenopathy.

Antiretroviral agents, such as the protease inhibitors, emtricitabine and tenofovir, and tealprevir for hepatitis C infection have also been reported to induce MDE.

A postinflammatory fine desquamation may also be seen. MDE is usually itchy.