In my job, I work with several species of Rosewood that are known sensitizers. The species I work with that is the most notorious for causing problems is Cocobolo (Dalbergia retusa) but I also work with East Indian Rosewood (Dalbergia latifolia) and a few other Dalbergias.
Yesterday, after working with both Cocobolo and East Indian rosewood, I developed a small rash on one forearm. It is very minor and normally I would not worry about it except that Cocobolo is known to cause increasingly severe reactions to the point where very small exposures can cause full-blown systemic reactions and anaphylaxis.
-Would it be reasonable for me to do my own patch testing by taping a small amount of dust from each species on my skin to determine which species I am sensitive to?
-In addition to protective clothing, gloves, and respiratory protection, would an antihistamine be helpful on the days that I work with the wood (maybe 3-4 days a month)?
-Any other suggestions.