POISON Ivy. 27 
Sometimes the eruption is less general, and 
confines itself to the part which has been exposed 
to contact with the poison. A gentleman, with 
whom I was in company, marked his wristband 
with the fresh juice, to observe the effect of the 
colour. The next day his arm was covered with 
an eruption from the wrist to the shoulder, but 
the disease did not extend further. It sometimes 
happens that the eruption continues for a Jonger 
time than that which has been stated, and that one 
set of vesications succeeds another, so as to protract 
the disease beyond the usual period of recovery. 
The symptoms of this malady, though often 
highly distressing, are rarely fatal, I have nev- 
ertheless been told of cases in which death 
appeared to be the consequence of this poison. 
The disease brought on by the different 
species of Rhus appears to be of an erysipelatous 
nature. Itis to be treated by the means which 
resist inflammation, such as rest, low. diet, and 
evacuations. Purging with the neutral salts is 
peculiarly useful, and in the case of plethoric 
constitutions, or where the fever and arterial 
excitement are — great, ee nae been 
found of service. a i 
The extreme irritability and veer sensa- 
tion may be greatly mitigated by opium. Cold 
