Acne during chemotherapy can feel unexpected, especially when your skin is already sensitive, sore or difficult to recognise. What once worked for breakouts may suddenly feel too harsh, leaving your skin more irritated rather than calmer.
The key is not to treat chemo acne like traditional acne. Instead, focus on calming inflammation, supporting the skin barrier and using gentle, fragrance-free skincare that helps your skin feel more comfortable.
What is the best way to treat acne during chemotherapy?
The best way to treat acne during chemotherapy is to use gentle, barrier-supportive skincare that calms inflammation without stripping the skin. Avoid harsh acne treatments and focus on hydration, microbiome balance and soothing ingredients that help restore comfort.
Chemo acne behaves differently from typical breakouts. It is often driven by inflammation, sensitivity and skin barrier disruption rather than clogged pores, which means aggressive treatments can make the skin feel worse.
Table of Contents
- What is chemo acne and what does it look like?
- Why am I getting acne during chemotherapy?
- What acne treatments should you avoid during chemotherapy?
- How do you treat chemo acne safely?
- What is the best skincare routine for chemo acne?
- Which products are best for acne during chemotherapy?
- Can you use active ingredients during chemotherapy?
- How long does chemo acne last?
- Quick Summary
- FAQs
What is chemo acne and what does it look like?
Chemo acne is a treatment-related skin reaction that can appear as red, inflamed bumps, pimple-like spots or a rash on the face, neck, chest or back. It is not the same as typical acne and is usually linked to inflammation rather than blocked pores.
This reaction is often part of “skin toxicity”, a common side effect of chemotherapy, immunotherapy, stem cell transplants and other treatments. Skin may feel itchy, sore, dry or more reactive than usual, which is why it benefits from a gentler, more supportive approach.
Why am I getting acne during chemotherapy?
Chemotherapy can weaken the skin barrier and disrupt the skin microbiome, leading to dryness, sensitivity and increased inflammation. This imbalance can trigger acne-like breakouts, even if you’ve never experienced acne before.
When the barrier is compromised, the skin struggles to retain moisture and protect itself from irritants. This can make it feel unpredictable, reacting more easily to products, environmental changes and internal stress.
If your skin feels different during treatment, this is completely normal. Many people experience new sensitivities, and it often requires a slower, more considered routine.
What acne treatments should you avoid during chemotherapy?
During chemotherapy, it’s best to avoid harsh acne treatments such as benzoyl peroxide, strong exfoliating acids and alcohol-based products, as these can further irritate already sensitive skin.
While these ingredients are often effective for traditional acne, they can be too aggressive when the skin barrier is compromised. Instead of improving breakouts, they may increase dryness, redness and discomfort. Fragrance and essential oils can also trigger irritation, particularly when skin is already reactive, so choosing fragrance-free formulations is a gentler, more supportive approach.
How do you treat chemo acne safely?
Chemo acne is best treated by calming inflammation and supporting the skin barrier, rather than trying to aggressively remove blemishes. A gentle, consistent approach helps the skin recover more comfortably over time.
This is where many routines go wrong, adding more products in an attempt to fix the skin quickly. In reality, sensitive skin responds best to simplicity, consistency and nourishment.
At By Sarah, this approach comes from lived experience.
When our co-founder Lauren was going through her own leukaemia treatment, her skin became sore, reactive and difficult to manage. In response, her sister Sarah began formulating gentle, fragrance-free skincare designed specifically to calm and support her skin.
Knowing that each product would not trigger irritation brought a sense of reassurance. Over time, these small daily rituals became something Lauren could look forward to, offering moments of calm during treatment, fatigue and uncertainty.
Those same formulations now form the foundation of the By Sarah collection. Every product is Dermatologically Approved for Sensitive Skin and created without fragrance or essential oils, making them suitable for even the most delicate skin.
What is the best skincare routine for chemo acne?
The most effective way to manage chemo acne is to simplify your routine and focus on calming and supporting the skin, rather than aggressively treating breakouts.
A gentle approach might begin with cleansing the skin using a non-stripping formula to remove impurities while maintaining moisture. This can be followed by lightweight hydration to ease tightness and discomfort. Applying a calming balm helps soothe areas that feel sore or irritated, while a nourishing facial oil supports the skin barrier and locks in hydration. During the day, finishing with SPF helps protect the skin from further environmental stress.
Which products are best for acne during chemotherapy?
The most suitable products for chemo acne are those that calm inflammation, support the skin barrier and help restore balance without overwhelming sensitive skin.
Rather than layering multiple products, it can help to focus on a few well-formulated essentials that work together to soothe and support the skin over time.
Balancer Cream Cleanser gently removes impurities without stripping the skin, helping maintain moisture and comfort.
Ally Recovery Blemish Facial Oil is particularly well-suited to chemo acne. Hemp seed oil provides essential fatty acids to support the skin barrier, while jojoba helps rebalance without clogging pores. Vitamin E offers antioxidant protection, helping to soothe redness and sensitivity.
Hero Facial Oil is ideal if your skin feels dry, tight or depleted. With sweet almond, apricot, pumpkin seed and argan oils, it helps nourish the skin and support long-term hydration and barrier repair.
Tender Skin Balm offers targeted relief for sore, irritated areas. Formulated with madecassoside from Centella Asiatica, it helps calm visible redness while supporting the skin’s natural repair process.
Reviver Hydrating Mist can be used throughout the day to maintain hydration and comfort. With prebiotic inulin and L-arginine, it helps support the skin microbiome while reducing feelings of tightness and sensitivity.
For many people during treatment, this step becomes more than skincare, it becomes a small moment of comfort within the day.
“I was diagnosed with secondary breast cancer and developed a very sore acne rash on my face. This product has been wonderful — the ritual, the ethos, the results. When you’re struggling, you just want something gentle… I can’t recommend it enough.”
— Sarah
Gentle, supportive skincare can make a meaningful difference not only to how the skin looks, but how it feels day to day.
“Really lovely oil… I recommended it to a woman going through cancer treatment who was looking for something to ease her skin. The products are excellent for very sensitive skin.”
— Alice
“I have recently completed treatment for breast cancer… reading the story behind By Sarah was really moving. I had to try these products.”
— Catherine
If you’re unsure where to begin, starting with Ally Recovery Blemish Facial Oil for daily support and Tender Skin Balm for targeted soothing can help create a simple, effective routine.
Can you use active ingredients during chemotherapy?
Some active ingredients may be suitable during chemotherapy, but only if your skin feels calm and they are introduced slowly. When the skin is already sensitive, it often responds best to a gentler approach, focusing first on calming, hydrating and repairing before adding anything more targeted.
If your skin feels stable, gentle actives can offer additional support without overwhelming the barrier. Vitamin C+E Facial Oil uses slow-release vitamin C to help brighten the appearance of dark spots and pigmentation, while vitamin E, squalane, jojoba and grapeseed oil help nourish and restore sensitive skin.
Bakuchiol Natural Retinol Facial Oil offers a plant-based alternative to retinol for sensitive skin, helping to support skin renewal without the dryness or irritation often associated with traditional retinoids.
If your skin feels particularly reactive, focus on calming and repairing before introducing actives.
As with any skincare during treatment, it’s important to listen to your skin and introduce products gradually.
If you experience any new or worsening symptoms such as rashes, peeling or persistent redness, it’s always best to seek advice from your healthcare team or specialist nurse. You can also find additional guidance through Macmillan Cancer Support.
How long does chemo acne last?
Chemo acne can last throughout the course of treatment and may continue for a short time afterwards, depending on how the skin barrier recovers. With gentle, consistent care, many people begin to see improvement within a few weeks.
Recovery time varies for each person. Supporting the skin with hydration, barrier repair and minimal irritation can help it gradually return to a calmer, more balanced state.
Quick Summary
- Chemo acne is often linked to inflammation and a weakened skin barrier
- Harsh acne treatments can increase sensitivity and discomfort
- Gentle, fragrance-free skincare helps calm and support the skin
- Facial oils rich in essential fatty acids can help reinforce the barrier
- Targeted soothing products can bring comfort to dry or irritated areas
- A simple, consistent routine supports gradual skin recovery
FAQs
Is acne common during chemotherapy?
Yes, acne-like breakouts are a common side effect of treatment and are usually linked to inflammation and sensitivity.
Can I use benzoyl peroxide during chemotherapy?
It is best to avoid it unless advised by your healthcare team, as it can be too harsh for sensitive skin.
Is face oil good for chemo acne?
Yes, a gentle, non-comedogenic face oil can help support the skin barrier and reduce moisture loss.
Can I still use active ingredients during treatment?
Gentle actives like vitamin C and bakuchiol can be used carefully, but strong actives should be avoided if the skin feels reactive.
When should I seek medical advice?
If you experience new or worsening rashes, peeling or discomfort, speak to your healthcare team or specialist nurse.
Continue Reading
- How to care for skin during and after cancer
- How to treat dry skin after chemotherapy
- How to Calm Red, Irritated Skin Fast
A gentle place to start
If your skin feels reactive, uncomfortable or unfamiliar during treatment, you’re not alone. These changes can feel difficult, but small, supportive steps can help your skin begin to feel calmer and more comfortable.
If you’d like personalised guidance, you can take our 3-minute Skin Quiz, explore the By Sarah collection, or reach out to us at care@bysarahlondon.com or via @bysarahlondon. We’re here to support you at every step.
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