how is your wife doing? is her rhinitis improved? Don't mislead the allergist by calling this Allergic Rhinitis, it may indeed be another undiagnosed condition. especially with there being blood tinged phlegm from her nose, you can make the argument to have a complete blood count drawn, along with more comprehensive blood studies, so as to rule out cancers or other potential underlying/unforeseen culprits.
All the best,
I live in canada,quebec.Allergist are found at clinics and hospitals in Canada.You can find a clinic or hospital near you by searching in the yellow pages on msn.com.