and are thought to be due to some change in the
character of the epithelial cells of this layer, probably from high
temperature, giving rise to a blocking up of the surface outlet.

#What is the cause of sudamen?#

Debility, especially when associated with high fever. The eruption is
often seen in the course of typhus, typhoid and rheumatic fevers.

#How would you treat sudamen?#

By constitutional remedies directed against the predisposing factor or
factors, and the application of cooling lotions of vinegar or alcohol
and water, or dusting-powders of starch and lycopodium.

#Hydrocystoma.#

#Describe hydrocystoma.#

Hydrocystoma is a cystic affection of the sweat-gland ducts, seated upon
the face. The lesions may be present in scant numbers or in more or less
profusion. They have the appearance of boiled sago grains imbedded in
the skin; the larger lesions may have a bluish color, especially about
the periphery. It is not common, and is usually seen in washerwomen and
laundresses, or those exposed to moist heat. In some cases it tends to
disappear during the winter months. There are no subjective symptoms.

Treatment consists of puncturing the lesions and application of
dusting-powder. Avoidance of the exciting cause (moist heat) is
important.

#Anidrosis.#

#Describe anidrosis.#

It is the opposite condition of hyperidrosis, and is characterized by
diminution or suppression of the sweat secretion. It occurs to some
extent in certain systemic diseases and also in some affections of the
skin, such as ichthyosis; nerve-injuries may give rise to localized
sweat-suppression.

Treatment is based upon general principles; friction, warm and hot-vapor
baths, electricity and similar measures are of service.

#Bromidrosis.#
(_Synonym:_ Osmidrosis.)

#Describe bromidrosis.#

Bromidrosis is a functional disturbance of the sweat-glands
characterized by a sweat secretion of an offensive odor. The sweat
production may be normal in quantity or more or less excessive, usually
the latter. The condition may be local or general, commonly the former.
It is closely allied to hyperidrosis, and may often be considered
identical, the odor resulting from rapid decomposition of the sweat
secretion. The decomposition and resulting odor have been thought due to
the presence of bacteria.

#What p