136 DISEASES OF THE SKIN 



two pounds; unslacked lime one pound; -water two gallons; boil down to 

 five quarts and filter, or allow it to stand until precipitated, and then pour 

 off for use the clear fluid. This should he applied freely to the entire hody 

 and gently rubbed into the parts more affected. 



Probabl}- much less time than a week will be occupied in destroying the 

 acari; if eczema remains, appropriate treatment should be instituted as 

 advised elsewhere for that disease. 



It should be remembered that while sarcoptic mange is purely a local 

 affection, in nowise dependent upon constitutional disturbances; yet the 

 annoyance caused by the itching, the loss of sleep, the effect upon the 

 nervous system, etc., will if persistent, very probably cause derangements, 

 which will in turn result in debility and an impairment of the general 

 health. 



Follicular M&wge. 



In this form of mange the hair follicles are first the seat of the disease; 

 the skin and subcutaneous tissues are afterwards involved by the inflam- 

 mation. The affection is contagious but far less so than sarcoptic mange 

 and its occurrence is more infrequent among dogs. 



Causation. —While the disease is often communicated by immediate 

 contact, certain conditions favor this form of parasite. Lack of cleanli- 

 ness, damp kennels, improper food, and general neglect are baneful 

 influences which predispose to the disorder. The spontaneous origin is 

 however yet to be decided. 



Symptoms. — The hair follicles first become inflamed, and the skin in 

 proximity is infiltrated, hot, red, and tumefied; a few pimples or papules 

 are then to be detected. The hairs from the affected follicles soon fall out, 

 an exudation into the sacs occurs which becomes purulent, and pustules 

 result. The pustules which are flat and run together, soon discharge their 

 contents and scabs are formed. These harden, crack open, and bleed 

 slightly. The eruption extends rapidly and soon the disease can be traced 

 in its varying stages. 



The animal becomes exceedingly repulsive, not only in appearance, but 

 emits a very offensive odor. 



Pain rather than itching is characteristic of the eruption. The disease 

 may attack any portion of the body, but it usually appears first on the head. 



The appetite is rarely lessened. As the disease progresses, loss of weight, 

 debility, and impoverishment of the general system results. 



diagnosis. —When the eruption first appears a diagnosis is by no means 

 easy, still the hot, tumefied condition of the skin, and absence of itching 



