us service to the part affected, is
best,) and treat the lesion with N. P., _light force_, five to eight
minutes daily.

ERUPTIVE CUTANEOUS DISEASES.

Take A D current, pretty _vigorous_ force in _acute_ cases; _mild_ in
_chronic_ affections. If the eruption be inflamed and acute, use _long
cord_ with N. P.; if sluggish and chronic, use _long cord_ with P. P.
Move the two electrodes parallel to each other, upon the patient, about
two or three inches apart; and pass them over all the affected surface.
Repeat the treatment daily in acute affections, and three times a week
in chronic cases.

COMMON CRAMP.

Although either the positive or the negative pole, applied to the
healthy muscle, may produce spasmodic contraction, yet the negative pole
contracts much more powerfully than the positive--a fact which shows an
electrically _plus_ condition in the nerves and muscles involved. Yet we
know that cramps are more apt to attend a _low_ condition of general
vitality in the system than the opposite. From several considerations,
which can not be detailed here, I am led to think that cramps are
produced, generally, at least, by a temporary or spasmodic _reaction_ of
the electro-vital force from an improperly negative to an excessively
positive state in the parts affected.

My practice is, when the spasm is on, to treat the parts in cramp by
momentary touches rapidly repeated, with the P. P. of the B D or A D
current, good medium force, placing N. P. at the back of neck, if the
disturbance be in an arm; or at the coccyx, if it be in a leg or in the
abdomen or chest.

In treating parts subject to cramp while the spasm is _not_ on, give
them, along with other parts of the system, _general tonic treatment_,
as directed on page 95. This elevates and equalizes the electro-vital
action, and relieves the difficulty.

TRISMUS. (_Lockjaw._)

For traumatic trismus, use the B D current, of vigorous force. Let the
wound be kept open and clear, except that soothing emollients may be
applied. Place N. P. at the coccyx, or near it on the spine; and then
treat, by firm but momentary touches of the P. P., over the lower
maxillary--_pterygoid_--muscles and nerves; indeed, over the _entire_
lower jaw and its articulations. Treat five to ten minutes, if
necessary, or until the jaws relax.

TETANUS.

This is substantially the same thing as _trismus_, except that it
extends to other parts, and often to nearly all the muscles of the