452 DISEASES OF THE SKIN 



when using the sublimate to avoid poisoning, also the application of both 

 nitrate of silver and picric acid are apt to leave more or less black or yellow- 

 stain on the skin. Oxide of zinc and sugar are recommended by Bis- 

 sauge, to be dusted on several times daily. Sublimate ointments (1 per 

 cent.) or subiodide of mercury (2 per cent.) are beneficial, but strong 

 solutions of blue-stone or crude sulphate of iron and tormentilla root are 

 not to be recommended. 



I^. Hydrarg. l^ichlorid., 1.0 



Glycerinum, 10.0 



Spts. vini rect., 90.0 



F. M. 

 Sig. — To apply upon eczematous surfaces. 



^- 



^. 



(c) In cases of pustula we may use the same treatment as is in- 

 dicated in b, after having pressed out and emptied the pustules. The 

 writer has also obtained good results v/ith ichthyol liniment and salicylic 

 ointment (see Acne). 



(rf) In chronic eczema, when it has reached the scaly stage, we must 

 first clean the skin thoroughly with some mild, non-irritating soap, but 

 not carbolic or tar soap. The best kind to use is Castile, ivory, green 

 German soap, or the pure potash soap of the Pharmacopoeia. The 

 writer has had good results from "Hebra's" alcoholic potash soap: 



I^. Saponis kalin. venal., 200.0 



Alcohol, 100.0 



Hebra's soap is poured or rubbed upon the surface which is thickly 

 covered with crusts, and on the following day they are removed easily 

 without subjecting the animal to much pain. After careful cleansing 

 we use the same agents as are used in the moist forms of eczema — zinc 

 powder, corrosive sublimate, or nitrate of silver. 



(c) In chronic eczema, we use tar and ichthyol and resorcin. The 

 first is used either in the form of solutions of tar or combinations with 

 oils. These preparations are used with good results in the chronic forma 

 of eczema where there is considerable cutaneous thickening, with cracks, 



