Irritant, which results from things that bother your skin like moisture -- think chapped lips or diaper rash on ababy As you get older, the condition may not respond as well to normal treatments. Medicated creams that that you use for age-related skin problems can also cause a reaction. ...
Scientifically speaking, our innocent shrub is Rhus typhina, the staghorn sumac, while the rash-inducing plant is called Toxicodendron vernix. Not even in the same genus. Cautious parents were simply being confused by the similarity of the common names. This story illustrates one of the ironies ...