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1. dermnetnz.org › topics › morbilliform-drug-reactionMorbilliform drug reaction (maculopapular drug eruption ...

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   There are no routine tests to make the diagnosis or to identify the culprit drug. Differential diagnosis includes measles, rubella, scarlet fever, non-specific toxic erythema associated with infection, Kawasaki disease, connective tissue disease and acute graft-versus-host disease.

2. dermnetnz.org › topics › drug-eruptionsDrug eruptions | DermNet

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   Acute or subacute adverse cutaneous reactions to a drug or medicine include drug eruptions. There are many types of drug eruption, which range from a clinically mild and unnoticed rash to a severe cutaneous adverse reaction (SCAR) that may be life-threatening.

3. People also ask

   What is a morbilliform rash?

   • Morbilliform eruption is the most common type of antibiotic rash. It is also called an exanthem. The exact pathogenesis is unclear. Some morbilliform eruptions do not recur when the patient is re-exposed to the causative drug. Many antibiotics cause morbilliform eruptions.

   Cutaneous adverse reactions to antibiotics | DermNet

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   How long does a morbilliform rash last?

   • On the first occasion, a morbilliform rash usually appears 1–2 weeks after starting the drug, but it may occur up to 1 week after stopping it. On re-exposure to the causative (or related) drug, skin lesions appear within 1–3 days. It is very rare for a drug that has been taken for months or years to cause a morbilliform drug eruption.

   Morbilliform drug reaction (maculopapular drug eruption) | DermNet

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   Can antibiotics cause a morbilliform rash?

   • Many antibiotics cause morbilliform eruptions. A morbilliform rash usually starts within 7–14 days of starting a new antibiotic, and lasts for 5–10 days. It may occur more quickly on re-exposure to the same drug. It can look similar to a viral exanthem but is usually pruritic, whereas similar viral rashes are not particularly itchy.

   Cutaneous adverse reactions to antibiotics | DermNet

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4. dermnetnz.org › topics › cutaneous-adverse-reactionsCutaneous adverse reactions to antibiotics | DermNet

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   Many antibiotics cause morbilliform eruptions. A morbilliform rash usually starts within 7–14 days of starting a new antibiotic, and lasts for 5–10 days. It may occur more quickly on re-exposure to the same drug. It can look similar to a viral exanthem but is usually pruritic, whereas similar viral rashes are not particularly itchy.

5. dermnetnz.org › topics › exanthemsExanthems (reactive rashes) | DermNet

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   Morbilliform drug eruption; Drug hypersensitivity syndrome. Acute connective tissue diseases can present with an exanthem: Systemic lupus erythematosus; Systemic-onset juvenile arthritis; Adult-onset Still disease. Some exanthems are of unknown cause, for example, Kawasaki disease. What are the signs and symptoms of exanthems?

6. dermnetnz.org › topics › enteroviral-infectionsEnteroviral infections | DermNet

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   Rubelliform eruption (rash looks like rubella): E2; Morbilliform eruption (rash looks like measles): E6, E11, E25; Petechiae (tiny purple spots or purpura): E11, E19; Punctate macular eruption: E19; A vesicular eruption (blisters): E11; Eczema coxsackium (a severe infection associated with atopic dermatitis). See enteroviral images.

7. dermnetnz.org › topics › measlesMeasles (morbilli) | DermNet

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   Acute measles is usually confirmed on a viral nasopharyngeal or throat swab analysed by polymerase chain reaction (PCR). Blood and urine samples can also be used. This should be done within 5 days of onset of rash, however, positive results are sometimes obtained up to 10–14 days after the rash has resolved.

8. dermnetnz.org › topics › urticaria-and-urticariaUrticaria and urticaria-like conditions | DermNet

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   This topic provides a differential diagnosis for urticaria and for urticaria-like conditions that resemble urticaria but are not caused by wealing. What is urticaria? Urticaria describes a group of conditions in which there are weals (or weals) in the skin, itchy white or red lumps.