How long does radiotherapy take to work for basal cell carcinoma?

Radiotherapy damages the ability of cancer cells to keep dividing. The visible response is not always immediate, and treated tissue can become more red, dry, tender or crusted before it settles. Your radiation team chooses the schedule according to the tumour’s site, size, depth and your overall situation. Follow-up is part of treatment because the clinician needs to inspect healing and confirm the response rather than judging it from appearance alone.

Use only the washing, moisturising and dressing products recommended by your radiation team. Protect the area from rubbing and unapproved creams, and do not remove crusts by picking. Keep every scheduled appointment, including reviews after the course ends. Tell the team about increasing discomfort, difficulty caring for the wound, or medicines and skincare products applied near the treatment field.

Contact the radiotherapy team promptly if pain, redness, swelling, weeping or ulceration is worsening, or if you develop fever or feel unwell. Seek urgent help for uncontrolled bleeding, rapidly spreading swelling, severe pain or signs of a serious allergic reaction. Do not stop prescribed treatment without speaking with the team.

Ask how your schedule is structured, when the skin reaction is expected to peak, which changes are normal during healing, and when response will be assessed. Ask who to contact outside appointments, how to protect nearby eyes or other sensitive structures, and what follow-up is planned for the treated site.