Chronic Moist Eczema at the Mane and Tail. 489 



plest and least likely to irritate, but the stronger applications can 

 usually be borne. The I^assar paste consists of two parts each of 

 finely powdered talc and zinc oxide, four parts of vaseline and 

 three per cent, of salicylic acid. Oxide of bismuth may substi- 

 tute the zinc oxide. Three parts of olive oil and four of diachy- 

 lon plaster melted together and stirred until cool, makes another 

 mildly astringent and sedative application. Iodoform i dr. to an 

 ounce of vaseline is an excellent agent. A mixture of iodoform and 

 tannin is used as a dusting powder by Friedberger and Frohner : 

 or silver nitrate solution (6 : 100) may be used. Tar ointment (1:8) 

 with a little subcarbonate of potassium added makes an excellent 

 application. Oil of cade and oil of white birch may be used in the 

 same way, the latter being the most desirable as a rule. Ammonia 

 chloride of mercury as an ointment (i : 10), often acts well and 

 the black wash, formed by the decomposition of calomel with 

 potash is frequently serviceable. Iodide of sulphur and vaseline 

 (i : 10) is also an excellent resort. An ointment of equal parts of 

 Canada balsam and sulphur or iodide of sulphur in four parts of 

 vaseline is often affective. Other valuable preparations are 

 ointments (10%) of ichthyol, naphthol, chrysarobin or pyrogallol. 

 Hebra's last resort of green soap is never to be forgotten, the 

 affected skin being thickly smeared with the soap which is left 

 to dry on, and is repeated and rubbed in, for several days in suc- 

 cession. It may seem at first to aggravate the disease by reason 

 of the solution and removal of the covering of the vesicles or 

 pustules and the exposure of a pink sensitive surface, but day by 

 day this improves and the skin 'becomes smooth and more nat- 

 ural. After a few days of this treatment, it may, if necessary, be 

 followed by astringent or stimulant dressings, or the varied 

 medicaments may be incorporated with the soap so as to form 

 one dressing to be applied from the first. When a healthy action 

 has been once established, all that is required further may be 

 cleanliness, with the use of bland dusting powders or ointments 

 to establish the cure. 



