r cent. strength.

[Illustration: Fig. 28. Sycosis.]

A change from one application to another will be found necessary in
almost all cases.

In obstinate cases the x-ray treatment can be used, as it has proved
itself valuable in some instances; as in other diseases, it should be
employed cautiously.

#What would you advise in regard to shaving?#

When bearable (and after a few days' application of soothing remedies it
almost always is), it is to be advised in all cases, as it materially
aids in the treatment. After a cure is effected it should be continued
for some months, until the healthy condition of the parts is thoroughly
established.

#When is depilation advisable as a therapeutic measure?#

When the suppurative process is active, in order to save the follicles
from destruction; incising or puncturing the pustules will often
accomplish the same end.

Depilation is in all cases a valuable therapeutic measure, but it is
painful; as a routine practice, shaving is less objectionable and, upon
the whole, is probably as satisfactory. Those who make free use of the
x-ray commonly push it to the point of producing depilation.

#Dermatitis Papillaris Capillitii.#
(_Synonym:_ Acne Keloid.)

[Illustration: Fig. 29. Dermatitis Papillaris Capillitii.]

#Describe dermatitis papillaris capillitii.#

This is a peculiar, mildly inflammatory, sycosiform, keloidal, acne-like
disease of the hairy border of the back of the neck, often extending
upward to the occipital region; partaking, especially later in its
course, somewhat of the nature of keloid. Several or more acne-like
lesions, papular and pustular, closely grouped or bunched, appear,
developing slowly, usually to the size of peas; are red, pale red, or
whitish, often enveloping small tufts of hair, and attended with more or
less hair loss. Its course is gradual and persistent. It is an
exceedingly rare condition, the exact nature of which is still obscure.

#Give the treatment.#

Treatment, which is usually unsatisfactory, consists of stimulating
applications--the same, in fact, as employed in sycosis, sulphur and
ichthyol deserving special mention. Depilation is essential.

#Impetigo Contagiosa.#

#Give a descriptive definition of impetigo contagiosa.#

Impetigo contagiosa is an acute, contagious, inflammatory disease,
characterized by the formation of discrete, superficial, flat