ch there is rapid scale-or
crust-production once daily or every second day may at first be
demanded.

#Name the most effectual applications in seborrh[oe]a capitis.#

Sulphur, ammoniated mercury, salicylic acid, resorcin, and carbolic
acid.

Sulphur is used in the form of an ointment, from twenty grains to one
drachm in the ounce. Ammoniated mercury, in the form of an ointment, ten
to sixty grains to the ounce. Salicylic acid, either alone as an
ointment, ten to thirty grains to the ounce; or it may often be added
with advantage, in the same proportion, to the sulphur or ammoniated
mercury ointment above named. Resorcin, either as an ointment, ten to
thirty grains to the ounce, or as an alcoholic or aqueous lotion, as the
following:--

[Rx] Resorcini ............................ [dram]j-[dram]iss.
Ol. ricini ........................... [minim]xxx-f[dram]ij.
Alcoholis ............................ f[Oz]iv. M.

Carbolic acid, to the amount of ten to thirty grains, can be added to
this. If an aqueous lotion is desirable, then in the above formula the
oleum ricini is replaced with glycerine, and the alcohol with water;
three to five minims of glycerine in each ounce is usually sufficient,
as a greater quantity makes the resulting lotion sticky. Petrolatum
alone, or with 10 to 30 per cent. lanolin, is usually the most
satisfactory base for the ointments. In some cases of the inflammatory
variety the skin is found quite irritable, and the mildest applications
are at first only admissible.

#How are the remedies to be applied?#

A small quantity of the lotion, ointment, or oil is gently applied to
the skin; when to the scalp, a lotion or oil can be conveniently applied
by means of an eye-dropper. In the beginning of the treatment an
application once or twice daily is ordered; later, as the disease
becomes less active, once every second or third day.

#How is seborrh[oe]a upon other parts to be treated?#

In the same general manner as seborrh[oe]a of the scalp, except that the
local applications must be somewhat weaker. The several sulphur lotions
employed in the treatment of acne (_q. v._) may also be used when the
disease is upon these parts. In obstinate patchy cases occasional
paintings with a 20 to 50 per cent alcoholic solution of resorcin is
curative; following the painting a mild salve should be used.

#Comedo.#
(_Synony