RINGWORM 139 



hair be pulled out with the forceps a white^gray 

 fuzz is observed around its roots. If placed upon 

 a slide, treated with a drop of potassium hydroxid, 

 and placed under the microscope the spores can be 

 seen ranged around or in the hair and the felt-work 

 of the mycelium penetrating its substances. 



Both favus and ringworm are contagious to man 

 and other animals, and every care should be used 

 to avoid the spread of these diseases. 



Treatment. — Practically the same treatment is 

 given for both conditions. In favus all loose hairs 

 should be removed with the forceps and the scutula 

 lifted off so as to expose the underlying skin. In' 

 ringworm all afifected hairs must be pulled out and 

 the healthy hair olipped away around the circum- 

 ference of the affected area, as the disease spreads 

 from the periphery. In both favus and ringworm, 

 tincture of iodin should then be painted both on the 

 afifected portions of the skin and that immediately 

 surrounding them. Treatment is often rather tedious, 

 fresh patches developing as one is cured. Some- 

 times, for some unexplained reason, iodin seems to 

 be ineffectual to promote a cure, and in these cases 

 the author has had most excellent results from giv- 

 ing the parts an application of bichlorid of mercury, 

 1-300, in alcohol. When the parts are dry follow 

 with an ointment as follows : 



Ac. Salicylic 



Ac. benzoic, aa gr. xv 



Petrolatum alba oz. i 



Care should be exercised to burn all extracted 

 hairs and scabs and to disinfect the hands after 

 applying treatment in order to prevent infection. 

 Patients should, of course, be isolated, and the ken- 

 nels disinfected and bedding burned before other 

 patients occupy them. 



