Perianal pruritus without clinically apparent dermatitis is a less common presentation of allergic contact dermatitis to methylchloroisothiazolinone/methylisothiazolinone (MCI/MI) and can be overlooked, subsequently delaying diagnosis and clinical improvement.
From the *University of California, Irvine, School of Medicine
†Department of Dermatology, Stanford University, Palo Alto, CA
‡Levittown, New York, NY.
Address reprint requests to Jodie Raffi, BA, Department of Dermatology, University of California, San Francisco, Mt Zion Medical Center, 1701 Divisadero St, San Francisco, CA 94115. E-mail: firstname.lastname@example.org.
The authors have no funding or conflicts of interest to declare.