11.   In fact, too much scrubbing can irritate the skin and stimulate the oil glands.

12.   Never use alcohol or mineral-based products, because they can irritate the skin.

13.   Poinsettia sap may irritate your skin, but contrary to lore, poinsettias are not poisonous to people or animals.

14.   Phosphoric acid is not an especially harsh chemical, but it can irritate sensitive skin.

15.   Radiation can irritate skin and cause temporary changes in pigmentation.

16.   She herself has become an avid user of Dove deodorant, saying it irritated her skin less than competing brands.

17.   She often refused to wear new clothing because it irritated her skin.

18.   Some plastics, like resins, hardeners, sealants and adhesives, can irritate the skin and emit toxic fumes.

19.   Surprisingly, the center gets few calls about poison ivy, poison oak and sumac, the saps of which can irritate skin with a burning and itching rash.

20.   Still, Gillette says its new blade cuts hair straighter and closer without pulling or irritating skin as much.