Thrush is a lesion caused by a Candida albicans infection of the oral mucosa, so the choice of clinic should be based on the specific situation. If it is neonatal thrush, it is usually appropriate to visit a neonatal clinic or a general pediatric clinic. If it is an older child with thrush, then it’s typically seen by a pediatric clinic during normal working hours, or it can also be seen at a dental clinic. During non-working hours, such as at noon, in the evening, on weekends, or holidays, it is generally appropriate to visit pediatric emergency or dental emergency services. Of course, for specialized children's hospitals and dental hospitals, there might be clinics available for pediatric dental medicine, in which case one would visit a pediatric dental clinic.