What is the course of rhus poisoning?
It runs an acute course, terminating in recovery in one to six weeks. In those eczematously inclined, however, it may result in a veritable and persistent form of that disease.
How would you treat rhus poisoning?
By soothing and astringent applications, such as are employed in acute eczema (q. v.), which are to be used freely. Among the most valuable are: a lotion of fluid extract of grindelia robusta, one to two drachms to four ounces of water; lotio nigra, either alone or followed by the oxide-of-zinc ointment; a saturated solution of boric acid, with a half to two drachms of carbolic acid to the pint; a lotion of zinc sulphate, a half to four grains to the ounce; weak alkaline lotions; cold cream, petrolatum, and oxide-of-zinc ointments.
How would you treat the dermatitis due to other deleterious substances of this class?
By applications of a soothing and protective character, similar to those used in eczema and burns.
Dermatitis Medicamentosa.
What do you understand by dermatitis medicamentosa?
Under this head are included all eruptions due to the ingestion or absorption of certain drugs.
In rare instances one dose will have such effect; commonly, however, it results only after several days' or weeks' continued administration. With some drugs such effect is the rule, with others it is exceptional, nor are all individuals equally susceptible.