Preparing your skin before radiotherapy starts is one of the simplest ways to support comfort throughout treatment. Begin a gentle, fragrance-free moisturising routine before your first session, ask your treatment team about their specific product-timing protocol, and avoid waxing or hair removal on the area in the lead up to treatment.
The days between being told you need radiotherapy and your first session can feel busy and uncertain. Preparing your skin doesn’t need to be complicated, and a small amount of preparation now can make a real difference to your comfort once treatment begins.
Small steps now ease later discomfort
Why Preparation Matters
Skin that is already well hydrated and in good condition tends to cope better with the changes radiotherapy brings. Preparing early also means you walk into your first session with a routine already in place, rather than trying to work one out once your skin has started to react.
A gentle routine to begin now
Start a Simple Skincare Routine Early
Current guidance encourages beginning a basic, fragrance-free moisturising routine before treatment starts, rather than waiting until skin changes appear. This helps support the skin barrier from the outset. Keep the routine simple: a gentle cleanser and a plain, fragrance-free moisturiser are enough at this stage.
Waxing, new products and harsh exfoliants
What to Avoid in the Lead Up to Treatment
It’s worth being cautious with the treatment area in the weeks before your first session.
- Avoid waxing, hair removal creams or laser hair removal on the area that will be treated.
- Avoid introducing several new skincare products at once. If your skin reacts once treatment starts, a simple existing routine makes it much easier to identify the cause.
- Avoid harsh exfoliants, strong active ingredients or new fragranced products on the treatment area.
Four practical questions worth raising beforehand
Questions Worth Asking Your Treatment Team
Protocols can vary between radiotherapy centres, so it’s worth asking your own team directly rather than relying on general guidance alone.
- Can I apply moisturiser before a session, or should I only apply it afterwards?
- Is deodorant allowed during my treatment?
- Are there any products your centre specifically recommends or asks patients to avoid?
- Will I need any special dressings, and if so, when?
Loose clothing, moisturiser and a towel
What to Pack for Your First Session
Loose, soft clothing that won’t rub against the treatment area is worth having ready, along with your fragrance-free moisturiser and a soft towel. Bringing your own moisturiser to early appointments also gives you a natural opportunity to check the timing question with your team in person.
Suggested CanScience Routine
A simple pre-treatment routine, started a week or two before your first session where possible.
- Morning: Cleanse gently, then apply a plain, fragrance-free moisturiser such as CanScience Body Repair Cream.
- Evening: Repeat the same gentle wash and moisturise.
- Supportive products: Starting with CanScience Body Repair Cream or Rayon Gel before treatment begins gives your skin a head start, and means you are already familiar with the product once your care team confirms your session-day timing.
Preparing Your Skin Before Radiotherapy Frequently Asked Questions
How soon before radiotherapy should I start moisturising?
Guidance generally supports starting a simple, fragrance-free moisturising routine before treatment begins, ideally in the days to weeks leading up to your first session where your schedule allows.
Can I wax or shave the area before treatment?
It’s best to avoid waxing, hair removal creams and laser hair removal on the treatment area in the lead up to and during your course. Gentle shaving with a wet or electric razor is usually fine once treatment has started, provided the skin is intact.
Do I need special products before starting radiotherapy?
No. A simple, fragrance-free cleanser and moisturiser are enough to prepare your skin. Your radiotherapy team can confirm whether they have any specific product recommendations for their centre.
Key Takeaways
A simple, fragrance-free moisturising routine started before treatment begins helps prepare the skin. Avoid waxing, hair removal creams and laser hair removal on the treatment area before and during your course. Ask your treatment team directly about product timing, since protocols vary between centres. Keep your pre-treatment routine simple so any reaction once treatment starts is easy to identify.
Medical Disclaimer:
The information in this article is for educational purposes only and does not constitute medical advice. It is not a substitute for professional medical guidance and is not intended to diagnose, treat, cure or prevent any condition. Product timing and technique can vary between radiotherapy centres. Always consult your oncologist, radiation therapist or healthcare team before making changes to your skincare routine during treatment.
This article draws on a 2023 systematic review of skin hygiene and radiation dermatitis prevention, 2024 to 2025 ESTRO RTT committee practical recommendations for radiodermatitis management, and Society of Radiographers practice guidance on radiotherapy skin care. Full citations available on request.
