r washings will depend upon the rapidity
with which the scales are reproduced.

#Are soothing applications often demanded in psoriasis?#

In exceptional cases; in those in which the disease is acute, markedly
inflammatory and rapidly progressing, mild, soothing applications must
be temporarily employed, such as plain or bran baths, with the use of
some bland oil or ointment. As a rule, however, the conditions, when
coming under observation, are such as to permit of stimulating
applications from the start. The most efficient soothing applications
are the mild lotions and ointments employed in eczema of acute type.

#How are the stimulating remedies employed in psoriasis applied?#

As ointments, oils, and paints (pigmenta).

An ointment, if employed, is to be thoroughly rubbed in the diseased
areas once or twice daily. The same may be said of the oily
applications. The paints (medicated collodion and gutta-percha solution)
are applied with a brush, once daily, or every second or third day,
depending mainly upon the length of time the film remains intact and
adherent.

#Name the several important external remedies.#

Chrysarobin, pyrogallol, tar, ammoniated mercury, [beta]-naphthol,
and resorcin.

#Are these several external remedies equally serviceable in all cases?#

No. Their action differs slightly or greatly according to the case and
individual. A change from one to another is often necessary.

#In what forms and strength are these remedies to be applied?#

_Chrysarobin_ is applied in several ways: as an ointment, twenty to
sixty grains to the ounce, rubbed in once or twice daily; this is the
most rapid but least cleanly and eligible method. As a pigment, or
paint, as in the following:--

[Rx] Chrysarobini, ........................ [dram]j
Acidi salicylici, .................... gr. xx
Etheris, ............................. f[dram]j
Ol. ricini, .......................... [minim]x
Collodii, ............................ f[dram]vij. M.

Or it may be used in liquor gutta-perchae (traumaticin), a drachm to the
ounce. It may also be employed in chloroform, a drachm to the ounce; this
is painted on, the chloroform evaporating, leaving a thin film of
chrysarobin; over this is painted flexible collodion. If the patches are
few and large, chrysarobin rubber-plaster may be used.

Chrysarobin is usually rapid in its effect, but it has certain
disadvantages; it may cause an