To further verify that NFIA affects inflammation and apoptosis in OLP lesion tissues by regulating the transcriptional level of S100A7, we infected mice with lentiviral vectors OE‐NC, OE‐NFIA, OE‐NFIA + OE‐NC, and OE‐NFIA + OE‐S100A7, followed by OLP modeling. This evidence concerns the gene S100A7 and oral lichen planus.