Reply to 'The first dose of COVID‐19 vaccine may trigger pemphigus and bullous pemphigoid flares: is the second dose therefore contraindicated?' by Damiani G et al. (4th February 2022) - Avallone, G.; Giordano, S.; Astrua, C.; Merli, M.; Senetta, R.; Conforti, C.; Ribero, S.; Marzano, A.V.; Quaglino, P.