Myths About Poison Ivy

• Myth #1: Poison ivy rash is "contagious."

  Fact: The rash is a reaction to urushiol oil found in poison ivy, oak and sumac. The rash cannot pass from person to person, but urushiol can be spread by contact.

  Myth #2: Once allergic, always allergic to poison ivy.

  Fact: A person's sensitivity to urushiol changes over time, and even from season to season. People who were sensitive to poison ivy as children may not be allergic as adults and vice versa.

  Myth #3: Scratching poison ivy blisters will spread the rash.

  Fact: The rash is caused by the urushiol oil found in poison ivy, oak and sumac and is not spread by the fluid in the blisters. If you have the urushiol oil on your hands and you scratch your nose or wipe your forehead, you may spread the oil and hence the rash. Avoid excessive scratching and make sure your fingernails and hands are clean.

• Myth #4: Dead poison ivy plants are no longer toxic.

  Fact: Urushiol oil stays active on any surface, including dead plants, for up to five years or longer.

  Myth #5: Besides complete avoidance, there's no way to prevent poison ivy rash.

  Fact: When applied to the skin before contact, IvyBlock is the only FDA-approved lotion that can prevent the rashes caused by poison ivy, oak and sumac.

  Myth #6: I've been in contact with poison ivy before and I'm not allergic to it.

  Fact: If a person has come in contact with poison ivy once and did not get a rash, it does not mean that he or she will always be immune. The first time a person is exposed to poison ivy he or she cannot get a rash. The first contact, which can occur without a person ever knowing, may create a hypersensitivity to the urushiol oil without causing a rash.

• Myth #7: "Leaves of three, leave them be."

  Fact: This is true for poison ivy, but not poison oak and poison sumac. Although poison ivy has 3 leaves per cluster, poison oak has 3 to 5 leaves, and poison sumac has 7 to 13 leaves on a branch.

  Myth #8: You can catch poison ivy rash by being near the plants.

  Fact: Direct contact with urushiol oil is needed. However, it is important to stay away from forest fires, direct burning or anything that causes the oil to become airborne such as a lawnmower or weed whacker.

  Myth #9: You have to touch a poison ivy, oak or sumac plant to get a rash.

  Fact: The most common way people contract an allergic rash from these plants is by touching an item that has urushiol oil on it, including garden tools, camping equipment, boots and even pet fur. Since urushiol can stay active for years, it's important to wash any item that has come in contact with poison oak, ivy or sumac with soap and water.

  Myth #10: Besides complete avoidance, there's no way to prevent poison ivy rash.

  Fact: When applied to the skin before contact, IvyBlock is the only FDA-approved lotion that can prevent the rashes caused by poison ivy, oak and sumac.