Good REDs PG.

I'm adding a little history to Barbers as a contribution to PJ.

Long, long ago Barbers used to be refered to as Barber Surgeons. They did the things that PJ referred to along with dentistry as it was of the time. here is a little more info:

The Separation of Barber and Surgeon
Gradually, the split between barbers and surgeons became more severe, and in 1743 in France and 1745 in England, barber-surgeons who cut or shaved hair were not allowed to perform surgery. In 1800 the College of Surgery was founded in England, and the last practicing barber-surgeon in England died in 1821.
Dentistry, which was another one of the many responsibilities of the barber-surgeon, was also gradually relegated to its own specialty. Surgeon-dentists were practicing as early as the 17th century.
Barbers, who had once performed an entire plethora of surgical procedures, were now primarily responsible for the care of a patron’s hair and nails. Increasingly in the 17th and 18th centuries, barbers became wigmakers for the European elite, some of them eventually splitting off into their own specialty as hairdressers.
Even so, the barber-surgeons skills remained in high demand as late as 1727, when John Gay penned his poem, The Goat Without a Beard:

His pole, with pewter basins hung,
Black, rotten teeth in order strung,
Rang’d cups that in the window stood,
Lin’d with red rags, to look like blood,
Did well his threefold trade explain,
Who shav’d, drew teeth, and breath’d a vein.

It is hard to imagine going to the barber shop today to get a boil lanced or a tooth pulled, or for an occasional bloodletting, but for much of human history this was the case. As medicine, and surgery, advanced, so did the profession of barbery. From haircuts to hangnails, they did it all.
The barber shop was the common ancestor of many different occupations today; surgeons, dentists, tattooists, embalmers, doctors, hairdressers, wigmakers, manicurists, pedicurists, and more can all source their ancestry to that one common denominator: the barber-surgeon.