Rare
... until now.
Post COVID-19 Vaccination Vulvar Aphthous Ulcers: An Unpopular Case Series (archive.ph) <- OP NSFW Search it: Vulvar Aphthous Ulcer in an Adolescent After Pfizer-BioNTech (BNT162b2) COVID-19 Vaccination Vulvar Aphthous Ulcer Following Pfizer-BioNTech COVID-19 Vaccine – A Case Report (archive.ph) NSFW Search it: Vulvar Aphthous Ulcer in an Adolescent With COVID-19 To keep in scope: vulvar aphthous ulcers after COVID-19 vaccination (archive.ph) Vulvar Aphthous Ulcer and COVID-19 mRNA Vaccination (archive.ph) Association of COVID-19 Vaccination with Vulvar Ulcers in Adolescent Females (archive.ph) Vulvar Ulcerations in Adolescents Following Both COVID-19 Infection and Vaccination (archive.ph) Adolescents with Vulvar Ulcers: COVID-19 disease, COVID-19 Vaccines, and the Value of Case Reports (archive.ph)
A few more, maybe, from VAERS (pic8.co)
(post is archived)