Background: Necrotizing fasciitis is a potentially life-threatening soft tissue infection, characterized by necrosis of the fascia, subcutaneous tissue, adipose tissue and can be fatal. NF is most common in immunocompromised hosts but may also occur in healthy patients without apparent antecedent injury. It is usually caused by either Group A streptococci or a polymicrobial, synergistic infection. The case that we present is unique in the Republic of Armenia, necrotizing fasciitis of the face in a child. Methods: We report the case of 3,5-year-old children who were treated for NF in our unit, inclusive, were reviewed retrospectively. Information recorded included medical history, clinical characteristics, diagnostic procedures, treatment methods, and the outcome. Results: The essence of the treatment was to prevent further development of necrosis, taking the child out of the state of general intoxication, in connection with, early surgical debridement, anti-intoxication, antibacterial therapy were carried out in several stages. In result, auto transplantation by full thickness skin autograft has been done, maintaining the aesthetic appearance of the wound. Conclusion: Because necrotizing fasciitis is a surgical emergency, the patient should be admitted immediately to a surgical intensive care unit, where the surgical staff is skilled in performing extensive debridement and reconstructive surgery. Despite the fact that it is rare in children, according to our data, it turned out that the reason for the penetration of microorganisms may be an incomplete injection. Clinicians should be aware of these infections, as early treatment can increase survival.