How to Manage and Treat Wounds Caused by Radiation Therapy

Radiation therapy targets cancer cells effectively, but it can also affect healthy tissue along the way — leaving skin irritated, damaged, or in more severe cases, wounded. Knowing how to care for that damage matters for healing and comfort alike.

What radiation-induced skin damage looks like

Severity varies widely: mild redness and irritation on one end, open sores or ulcers on the other. Skin in the treated area commonly becomes dry, itchy, and sensitive, and in more significant cases, damage can extend to tissue beneath the surface.

Daily care that supports healing

• Keep the area clean — gentle cleansing with mild, non-irritating soap and lukewarm water, patting dry rather than rubbing, and skipping harsh or scented products.
• Moisturize regularly — a gentle, fragrance-free moisturizer helps counter the dryness and cracking radiation can cause.
• Avoid irritants — perfumes, dyes, and rough fabrics; loose, soft clothing reduces friction, and sun exposure should be avoided on sensitive skin.
• Watch for infection — increased redness, swelling, warmth, or discharge should prompt a call to your provider promptly.
• Use prescribed treatments as directed, and raise any concerns or side effects with your care team rather than adjusting on your own.

For more severe wounds

Open sores or ulcers need more structured wound care — specialized dressings, medicated ointments, and regular dressing changes as directed by your provider. Supportive therapies like gentle hydrotherapy or advanced wound dressings (silicone gels, for example) can also help manage more significant damage and support faster healing. A diet with adequate vitamins C and E and zinc supports the skin's own repair process alongside topical care.

After treatment ends

Skin damage doesn't always resolve the moment radiation therapy is complete. Continuing good hygiene and moisturizing, along with regular follow-up appointments, helps track healing progress. If symptoms or complications persist beyond the treatment period, it's worth discussing further options with your provider rather than assuming it will resolve on its own.