METHODS

We did a pathology biopsy on him again (Figure1B). He underwent symptomatic treatment with oral baricitinib tablets (2 mg, once a day) + oral desloratadine citrate disodium tablets (8.8 mg, once a day) combined with topical compound flumethasone ointment and Fucidin cream since August 2, 2021. The Visual Analogue Scale (VAS) scale for the degree of itching was adopted to assess the severity and control of the disease. The VAS score of the patient was 7–8 points at the initial diagnosis.