In this issue of CHEST (see page 1461), Blanc et
al report the results of a California survey showing that, in 1999, the
1-year prevalence of “alternative therapy” (AT) usage by patients
suffering from asthma or rhinosinusitis was 42%. This figure exactly
matches the 1-year prevalence figure determined in 1997 for the general
population of the United States.1 In the survey by Blanc
et al, the most frequently used oral treatments were ephedra, Chinese
herbal mixtures, and caffeine products.