1. A 25-year-old woman reports anogenital itching, burning, and redness, present for 3 months. She says she developed a yeast infection after antibiotic therapy for a dental infection. The yeast infection was treated with terconazole, which resulted in immediate severe burning, redness, and swelling. Clobetasol cream used twice daily also caused burning, so she discontinued it. Her symptoms improved when she tried cool soaks and applied topical benzocaine gel as a local anesthetic.
Diagnosis: Irritant contact dermatitis (as opposed to allergic contact dermatitis) associated with the use of terconazole and clobetasol. This was followed by allergic contact dermatitis in association with benzocaine. Treatment consists of withdrawal of benzocaine, reinitiation of cool soaks, and a switch to clobetasol ointment rather than cream. Nighttime sedation enables the patient to sleep through the itching and gradually allows her skin to heal.
For more information on this case, see “Chronic vulvar irritation, itching, and pain. What is the diagnosis?” OBG Manag. 2014;26(6):30-37.