Background: Delusional Infestation is a well-documented, psychodermatological condition where patients falsely believe themselves to be parasitized. It responds well to psychiatric treatment, but the delusion causes patients to seek dermatologists or entomologists for help. Publications denying the psychological component of the illness, often without evidence, harm public health by negatively affecting patient treatment. This paper addresses a novel form of such denial called “neurocutaneous syndrome," whose proponents reject both the psychological and parasitological etiology, and instead attribute the symptoms to common dental sealants. Methods: A critical, scoping review of all relevant literature without other exclusion criteria was completed in 2026 following PRISMA guidelines to determine where this concept originated and how far it has spread. Conclusions: The results show that "neurocutaneous syndrome" as a denial of delusional infestations entered the scientific literature primarily via predatory, non-peer-reviewed, and clone journals, but also peer-reviewed dentistry journals. Valid evidence for it is nonexistent. While not accepted by the medical community, uncritical acceptance of neurocutaneous syndrome features prominently in alternative health publications. The academic literature has been slow to counter such misinformation, especially for conditions like delusional infestations that straddle the disparate fields of dermatology, psychiatry, and entomology.