Electrothereupeutics
The nineteenth century was a golden age of electro-therapeutics, thanks to the enthusiastic nature of innovators eager to incorporate electricity into medical treatments. A slew of medical inventions came to the market, some perhaps strange to us now while others familiar due to modern devices operating on the same principles.
Electricity could be directly applied via shocks in order to treat paralysis and nerve-related issues. Similarly, electric currents were used as a form of anesthesia; accounts mention running an electric current through a patient's jaw while their teeth were pulled. Vibrating belts provided massages to relieve muscle pain.
Treating the nerves and muscles

Current differences based on what kind of electrodes are used and where they are placed on the body

Motor points of the muscles of the head, face, and neck

Muscles supplied by the facial nerve stimulated from the motor point below the meatus

Bilateral contraction of the corrugator supercilii muscles

Bilateral contraction of the zygomaticus major. The contraction of the orbigularis palperum is also shown in the cut

Motor points of the face and neck

Faradization of the facial nerve and muscles. Eyelid firmly closed and mouth drawn to one side

Muscle faradization with metallic electrodes (Duchenne)

Faradization of the muscles of the thigh, contraction of the quadriceps

Faradization of politeal nerve and peroneal muscles. Foot brought upward and outward

Spinal-cord-median current

General faradization - application to the stomach

General faradization - application to the lower extremities

Electro-therapeutical anatomy of the human body. Posterior view.

Faradization of the uterus
Vibrations and massages

Method of applying vibrator to the ear

Freudenthal's instrument for vibratory massage

Roller or massage electrode

The farado-masseur, combining facial massages and faradic current

Various electric devices, including a wheel massage electrode

Jackson's pneumatic masseur for the ear