What should you know about radiotherapy skin care?

The treated skin may become pinker, darker, dry, itchy, tender or more sensitive as sessions continue. Changes are limited to the area receiving radiation, although the timing and intensity vary with the body site, dose, treatment method and your skin. Some reactions appear after treatment has finished and then gradually settle.

Skin folds and areas exposed to rubbing can need extra attention. Hair may thin in the treatment field, and a temporary change in colour can remain for a while. Your team can distinguish an expected reaction from a problem needing treatment.

Wash with lukewarm water and a mild product recommended by your team, then pat rather than rub. Use loose, soft clothing and protect the area from direct sun, hot water bottles, heating pads and vigorous massage. Do not scratch, shave over irritated skin, use adhesive dressings or apply a new cream without checking first.

Keep any treatment markings in place unless the team tells you otherwise. If moisturiser is advised, use it as directed and avoid putting products on the skin immediately before a session unless your department has approved that routine.

Tell the radiotherapy team promptly if redness spreads, pain increases, the skin blisters or opens, fluid leaks, or an area becomes hot and swollen. Seek urgent help for fever with rapidly worsening skin, facial swelling or trouble breathing. Do not wait for the next appointment when a reaction is escalating.

Ask which cleanser and moisturiser are suitable, whether you should remove deodorant or products before treatment, how to protect the area outdoors, and what to do if the skin breaks. Ask how long to continue the routine after the last session and which number to call for advice.