According to the CDC, candidiasis of the mouth and throat refers to a fungal infection that happens when there is an overgrowth of candida, a kind of yeast. Candida infections of the mouth and throat must be treated with prescribed anti-fungal medication, not oil of oregano.
According to the CDC, candida can also develop in the esophagus, referred to as candida esophagitis. Candida esophagitis is typically treated with oral or intravenous fluconazole, or oral itraconazole. Candida infections of the mouth and throat are not common with adults who are overall considered healthy. These infections are most common with infants less than 1 month old, the elderly and those with weak immune systems.