<b><i>Introduction:</i></b> Physicians have largely studied the cutaneous involvement of coronavirus disease 2019 (COVID-19), but only few reports have focused on telogen effluvium (TE) as a possible sequela of COVID-19. We assessed 14 cases of hair loss occurring after SARS-CoV-2 infection using trichoscopy and trichogram to investigate patterns related to COVID-19. Furthermore, we discussed possible mechanisms involved in COVID-19 TE. <b><i>Case Presentation:</i></b> Fourteen individuals were referred to our post-COVID-19 dermatology office complaining acute hair loss after SARS-CoV-2 infection. Clinical evaluation included pull test, trichoscopy, and trichogram. CO­VID-19 TE occurred after a median of 2 months (range 1–3 months) following SARS-CoV-2 infection. The median duration of hair loss was 5 months (range 1–6 months). Trichoscopy showed variable but typical TE patterns. Trichogram showed different telogen/anagen ratio depending on the interval between onset of hair loss and trichological visit. <b><i>Discussion/Conclusion:</i></b> Our cases showed TE between 1 and 3 months after the onset of SARS-CoV-2 infection, thus earlier than classic TE. Trichoscopic features and trichogram showed no variations from classic TE. Different pathogenetic mechanisms including pro-inflammatory cytokines and direct viral damage on the hair follicle can be hypothesized; further studies on a larger sample are needed to better understand this condition.

Acne is a common inflammatory skin disorder affecting the pilosebaceous unit. Patients with mild‐to‐moderate acne can be treated with a combination of topical, systemic, and physical therapeutic approaches, with different results depending on patient, disease, and treatment characteristics. Herein we describe and discuss the common and alternative treatment options used for mild‐to‐moderate acne, by comparing three widely distributed guidelines (American Academy of Dermatology, European Academy of Dermatology and Venereology, and Italian Society of Dermatology and Venereology.

determining the current pandemic. It is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), an RNA

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