Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Skin Problems & Treatments Health Center

Font Size

Poison Ivy, Oak, or Sumac: Barrier Lotions and Creams Topics

Poison Ivy, Oak, or Sumac: Barrier Lotions and Creams - Topic Overview

If you know you will be working around poison ivy, oak, or sumac, you may think about using a barrier cream or lotion. This will help prevent the plant oil (urushiol) from contacting your skin and causing a rash (allergic contact dermatitiscamera.gif).

  • Less than 1 hour before contact with the plant, apply the product in a thick, complete layer.
  • Wash the product off thoroughly within 4 hours (preferably as soon as possible) after contact with the plants. The product only delays the penetration of the urushiol.
  • For continued protection, reapply the product every 4 hours.

Products containing bentoquatam, such as IvyBlock, may help prevent the rash. These products should not be used on children younger than age 6 or by anyone who already has a rash from the poison ivy, oak, or sumac plants. You can get these products without a prescription.

Barrier creams and lotions do not completely protect against getting a poison ivy rash.


WebMD Medical Reference from Healthwise

Last Updated: March 12, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
Next Article:

Today on WebMD

Pictures and symptoms of the red, scaly rash.
woman with dyed dark hair
What it says about your health.
woman with cleaning products
Top causes of the itch that rashes.
atopic dermatitus
Identify and treat common skin problems.
itchy skin
shingles rash on skin
woman with skin tag
Woman washing face
woman washing her hair in sink
close up of womans bare neck
woman with face cream