Do natural remedies for scabies really work?

No, not really. There aren't any herbs or teas that get rid of scabies. Sulfur creams and lotions have been known to get rid of scabies, but covering oneself with smelly sulfur cream is not exactly natural (more like 19th century medicine). The easiest way to get rid of scabies is to get prescription modern medicine from the doctor.
No . Need standard scabies treatment (prescription strength or pharmaceutical grade).