Crusted scabies in a patient with methamphetamine abuse

Crusted scabies is a rare, severe, and highly contagious infestation caused by Sarcoptes scabiei var. hominis. It typically occurs in patients with cognitive or neurologic disorders or in patients who are immunocompromised, including those with HIV, malignancies, immunosuppressive drug use, chronic kidney disease, and those with advanced age.1,2 To our knowledge, there are no previous reports of crusted scabies occurring in patients with methamphetamine use. The author reports the case of a man using methamphetamine successfully treated with topical benzyl benzoate and oral ivermectin.