“…1 These ulcers are known to form in response to many infectious triggers, but most recently, reports have been made of RNSRAGU from both COVID-19 infection and vaccination. [1][2][3][4][5] There have been many dermatological reactions to both COVID infection and vaccine in the literature thus far, including acro-ischemia, pityriasis rosea, chilblain-like lesions, vesicular eruptions, and diffuse erythematous rash. 1,2,6 Mucosal ulcerations are a known side effect of vaccines historically, but a growing number of cases to the COVID-19 vaccine have been reported.…”