Radiation treatment can cause skin to become red, dry, itchy, and even to blister or peel. These skin reactions are only temporary. If they occur, they usually begin about two weeks after treatment has started, but can begin earlier. Skin reactions may continue for several weeks after treatment ends.

The following guidelines may help you avoid irritating the sensitive skin around the treatment area:

• Use only lukewarm water to wash skin around the treatment area. If it is necessary to use soap, use a mild soap like Lever 2000.
   

• Avoid scratching, rubbing, or scrubbing the area. This makes the condition worse. Pat your skin dry with a soft towel.
   

• Do not use any powders, creams, lotions, deodorants, or cosmetics on the treatment area. These substances may contain metals that could increase the reaction to your skin. Your radiation oncologist may order certain bland ointments for dryness and itching, such as Vitamin A, Aquaphor, or hydrocortisone. If your doctor has ordered an ointment, do not apply it before your treatment.
   

• Do not use adhesive tape or band-aids on the skin in the treatment area.
   

• Use only an electric razor to shave the treated area during the entire course of treatment. Check with a member of your radiation therapy team before you resume shaving any other way.
   

• Do not use hot water bottles, ice bags, heating pads, or heating lights on the skin in the area being treated.
   

• Keep your skin dry and open to the air as much as possible. Wear only loose-fitting cotton clothing over the treated area to avoid irritation. Use fabric softener when washing clothes.
   

• Keep the treated area out of the sun. When you go outside, be sure to cover the treated area with clothing. During your therapy, the skin of the treated area may become darker. This is an expected side effect.
   

• Avoid swimming during your therapy unless you have your radiation oncologist’s approval. The chlorine in swimming pools dries the skin.
   

• Folds of skin are more likely to be irritated. Also, remember to check the exit site (the other side of your body).