As known in theatrical literature, one way for communities to heal their traumas is through Applied Theatre (AT). Presenting a case of a theatre workshop promoted and attended by several healthcare professionals of the main hospital in Bergamo, this article shows AT as a resource and tool for professionals dealing with trauma, grief, and loss. Bergamo was the epicentre of the first outbreak of the pandemic in Europe. COVID-19 hit the entire community, dramatically putting the hospital and the ER at the centre of the crisis. Several doctors and nurses organized a theatre workshop a few years later to heal from the trauma and present their story in a theatre play Silent Days, Sleepless Nights, for the city. The article contributes to the literature on Applied Theatre in the post-pandemic era by showing the cathartic power of theatre and its potential for healing from COVID-19 trauma. Returning to tragedy in the classics, AT should be understood as a tool for communities when they experience a shared condition of fragility. The catharsis in the communal sharing of experiences through the staging of the scenes and the construction of a common narrative horizon were the elements through which the meaning and overcoming of painful memories were substantiated.