Characterized by an immune reaction to medications, toxic epidermal necrolysis (TEN) and Steven-Johnson Syndrome (SJS) are potentially fatal mucocutaneous reactions, and their management remains challenging. Considering the promising studies regarding the use of laser in managing orofacial lesions, this study aimed to report two cases in which children presenting with TEN and SJS were treated using a combination of antimicrobial photodynamic therapy (aPDT) and photobiomodulation therapy (PBMT) concurrently with conventional supportive care. The treatment proposed herein resulted in significant clinical improvement of the children's oral condition within a few days, enabling the reintroduction of oral feeding. Within the limitations of the study, the cases reported suggest that the adjuvant combination of PBMT and aPDT may be beneficial for improving the oral condition of children afflicted with oral injuries induced by TEN and SJS.