■292 PBINCIPLES OF VETEBINAEY SUBGERT 



part of alum and two of tannoform, held in place by a pres- 

 '«ure bandage, is indicated. The average time required to 

 -heal this state is about fourteen days. 



What is the prognosis of dermatitis gangrenosa f 



This depends entirely on the extent of the lesion and the 

 intensity of the infection. No definite rule can be given. 



What is the treatment of gangrenous dermatitis ? 



In the beginning, warm antiseptic cataplasm to hasten 

 separation of the necrotic piece. Later the wound is dried off 

 ^nd healed under a scab with tannoform or alum tannoform 

 powder ; the latter is used, provided the granulations are ex- 

 •cessive. Complications, as quittor, septic tendovaginitis, 

 -etc., have to be treated accordingly. Frohner reports good 

 xesults by treating these cases with tincture of iodine. 



What is the prognosis of dermatitis chronica verrucosa f 



Weeks and months are often required to produce a cure. 

 The greater the proliferations of the papillary layer of the 

 skin — that is, the larger the wart-like excrescences — the more 

 -difficult the treatment. In those cases where the skin is 

 wrinkled, and the warts large, a cure is excluded. 



What is the treatment of chronic verrucous dermatitis ? 



Should the parts be covered with crust and the whole 

 Tegion edematous, apply a warm antiseptic cataplasm for 

 iiwenty-four hours, wash the parts perfectly clean and dry 

 them ; now apply with a brush three times daily sulphuric 

 ^cid one part, alcohol twenty parts. For cases which ooze very 

 persistently, a dressing moistened with the above liquid may 

 l)e applied. After the parts dry off, use daily red oxide of 

 mercury one part, lard five parts. There are ever so many 

 •other remedies, but none as reliable as the above line of treat- 

 ment suggested. 



