Verma Shyam, Jakhar Deepak
Department of Dermatology, In Skin Clinic, Vadodara, Gujarat, India.
Department of Dermatology, Dermosphere Clinic, New Delhi, India.
Indian Dermatol Online J. 2023 Nov 24;15(1):86-88. doi: 10.4103/idoj.idoj_25_23. eCollection 2024 Jan-Feb.
Post herpetic itch (PHI) is a less commonly reported sequela of herpes zoster. It can begin upon the resolution of the lesions or several weeks later. PHI is neuropathic in nature and is said to be caused by neural injury in the form of demyelination of itch-transmitting nerve fibers in the skin. The majority of PHI resolves over weeks to months with symptomatic treatment. We report a case of PHI resulting in frictional alopecia of eyebrows and scalp due to frequent rubbing of the skin and hairs secondary to bothersome neuropathic itch.
带状疱疹后瘙痒（PHI）是带状疱疹较少被报道的后遗症。它可在皮损消退时开始，或在数周后出现。PHI本质上是神经性的，据说是由皮肤中传递瘙痒的神经纤维脱髓鞘形式的神经损伤引起的。大多数PHI通过对症治疗在数周至数月内缓解。我们报告一例PHI病例，由于令人烦恼的神经性瘙痒导致皮肤和毛发频繁摩擦，进而引起眉毛和头皮的摩擦性脱发。
