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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.
They are often described as morbilliform or maculopapular eruptions. Characteristics of drug eruptions include: The rash starts within 14 days of a new medication (except in drug hypersensitivity syndrome, when they arise within eight weeks of starting a new medication) They arise sooner on re-challenge
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Apr 1, 2024 · Rashes from vasculitis most commonly appear on the lower legs but can occur anywhere, especially in areas prone to trauma or pressure. For example, a vasculitis rash can develop on the feet, thighs, buttocks, arms, trunk, head, and neck.
- Colleen Doherty, MD
Mar 13, 2019 · The term “morbilliform” connotes a measles-like: the rash of measles is classically described as having macules that are 3 to 4 mm in size that coalesce. MDE is usually itchy. The eruption usually begins on the trunk and upper extremities and progresses caudally. It is usually symmetric.
Pictures. Symptoms. Causes. Differential diagnosis. Treatment. Complications. Outlook. Takeaway. A maculopapular rash can signify a disease, allergic reaction, or infection. It is most...
May 10, 2018 · Pictures. Other symptoms. Causes. Complications. Diagnosis. Treatment. Takeaway. A maculopapular rash causes flat and raised lesions on the skin. Maculopapular rashes usually suggest an...
Apr 26, 2022 · Morbilliform Drug Eruption. Morbilliform drug eruption is a rash that develops because of an adverse reaction to a drug. Antibiotics are the usual trigger, but many drugs can trigger this allergic ...
