dinary eczema and
seborrh[oe]a.

#Describe the symptoms of erythematous eczema.#

Erythematous eczema (_eczema erythematosum_) begins as one or more small
or large, irregularly outlined hyperaemic macules or patches, with or
without slight or marked swelling, and with more or less itching or
burning. At first it may be ill-defined, but it tends to spread and its
features to become more pronounced. It may be limited to a certain
region, or it may be more or less general. When fully developed, the
skin is harsh and dry, of a mottled, reddish or violaceous color,
thickened, infiltrated and usually slightly scaly, with, at times, a
tendency toward the formation of oozing areas. Punctate and linear
scratch-marks may usually be seen scattered over the affected region.

[Illustration: Fig. 21. Eczema Rubrum.]

Its most common site is the face, but it is not infrequent upon other
parts.

#What course does erythematous eczema pursue?#

It tends to chronicity, continuing as the erythematous form, or the skin
may become considerably thickened and markedly scaly, constituting
eczema squamosum; or a moist oozing surface, with more or less crusting,
may take its place--eczema rubrum.

#Describe the symptoms of papular eczema.#

Papular eczema (_eczema papulosum_) is characterized by the appearance,
usually in numbers, of discrete, aggregated or closely-crowded, reddish,
pin-head-sized acuminated or rounded papules. Vesicles and
vesico-papules are often intermingled. The itching is commonly intense,
as often attested by the presence of scratch-marks and blood crusts.

[Illustration: Fig. 22. Eczema Squamosum et tissum.]

It is seen most frequently upon the extremities, especially the flexor
surfaces.

#What course does papular eczema pursue?#

The lesions tend, sooner or later, to disappear, but are usually
replaced by others, the disease thus persisting for weeks or months; in
places where closely crowded, a solid, thickened, scaly sheet of
eruption may result--eczema squamosum.

#Describe the symptoms of vesicular eczema.#

Vesicular eczema (_Eczema vesiculosum_) usually appears, on one or
several regions, as more or less diffused inflammatory reddened patches,
upon which rapidly develop numerous closely-crowded pin-point to
pin-head-sized vesicles, which tend to become confluent and form a solid
sheet of eruption. The vesicles soon mature and rupture, the discharge
drying to yellowish, honeycomb-like cru