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.