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Post-scabies Dermatitis Mimicking Treatment Failure: A Diagnostic Challenge
Sola Maria Saleh1, Ramez Azzam2
1Health Outcomes and Biomedical Informatics, College of Medicine, University of Florida, Gainesville, USA.
Cureus
|June 23, 2026
Summary
Persistent itching after scabies treatment may not be reinfestation. This case highlights post-scabies dermatitis, a hypersensitivity reaction, requiring specific management to avoid unnecessary treatments.
Area of Science:
- Dermatology
- Parasitology
- Immunology
Background:
- Scabies, caused by *Sarcoptes scabiei* var. hominis, is commonly treated with permethrin or ivermectin.
- Persistent pruritus and skin lesions can occur post-treatment, causing diagnostic challenges and leading to retreatment.
- Distinguishing these symptoms from active infestation or reinfestation is crucial for appropriate patient care.
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