A hermetically sealed jumpsuit will prevent fiberglass itch, but if you don't have one there's another way.
Photo by Fotolia/Cyril Comtat
Anyone using fiberglass insulation knows that a case of itching almost always follows the installation. To prevent this reaction, liberally apply cornstarch or talcum powder over your body before you start the project. You’ll be amazed at how this simple trick reduces the aggravation of fiberglass itch.