ECZEMA. 301 
tered in any case of quite recent occurrence in which the skin affection is 
evidently attributable to errors in digestion, until after every effort has been 
made without success to overcome them. But in long standing cases, in 
which digestion is not perfect, arsenic combined with a tonic will likely prove 
beneficial. 
Cases are now and then encountered in which the caretaker is in doubt as 
to whether he should give arsenic or rely on some other internal remedy, 
the subjects being seemingly well nourished and in fairly good health, aside 
from the skin trouble. 
Sublimed sulphur is the ag +t which can rightly be first tried in such cases. 
The dose should be small, and for dogs of medium size, about the quantity 
that can be taken up on a silver dime. One-half more for dogs of largest size, 
and one-half less for fox-terriers, and the like; while toys may take about one- 
fourth the quantity proper for those of medium size. 
This powder should be mixed with the food for breakfast, and may be given 
daily for two or three months. 
In cases of long standing that have resisted all other treatment, arsenic may 
be tried in the following combination : 
Citrate of iron and ammonia, one ounce; Fowler’s solution, two ounces. 
Of this four drops may be given three times daily, in the food, to dogs of 
medium size breeds; six drops to the largest; three drops to those of about 
the size of fox-terriers; and two drops to toys. Slight increases in the doses 
may be made from time to time if a gain is not occurring. 
For a time after an eruption of eczema has disappeared, the use of the 
applications which have been successfully employed should be persisted in, lest 
the trouble recur. 
If a thickening of the skin remains, and the patient cannot lap the spots, a 
little of the ammoniated mercury ointment should be rubbed in every night and 
‘morning; or petrolatum can be used if it is easy for him to reach those spots 
with his mouth. 
As for remedies to make the hair grow after healing is complete, only a few 
of the most popular are likely to have any effect, while some are positively 
inert. If the denuded skin be kept softened by a simple ointment, a renewal 
of the hair will be favored. To stimulate its growth, the following will doubt- 
less accomplish quite as much as any other preparation : 
Resorcin, one drachm ; salicylic acid, two drachms; alcohol, two drachms ; 
castor-oil, two ounces. 
Once daily it should be well rubbed into the skin from which the hair has 
fallen. 
