Nobody Warned Me What Chemo Would Do to My Skin

Chemo skin changes explained: hand-foot syndrome, dry flaky skin, and how raw shea butter can help

Medically written by Dr. Obiageli Ezewuiro, MD, Founder of Theobion

If you or someone you love is in treatment, you have probably noticed that your skin no longer behaves the way it used to. Hands crack. Heels split. Lotion that worked for years suddenly feels like nothing. You are not imagining it, and you are not alone.

As a physician, I want to walk you through what is actually happening to your skin, what the research says, and where a simple ingredient like raw shea butter fits in.

Why does chemotherapy make your skin so dry and flaky?

Chemotherapy targets fast-dividing cells. Your skin renews itself constantly, so it gets caught in the crossfire. The result is a thinner, weaker moisture barrier that loses water faster and repairs itself more slowly.

Dry skin, called xerosis, is the most common skin complaint during treatment. In a prospective study of 128 people on chemotherapy, xerosis appeared in 72.7% of patients, and in 75.5% of those on classic chemotherapy agents.^[1] Itching, nail changes, and redness of the palms and soles were also common in the same group.^[1]

Targeted therapies cause dry skin too. A meta-analysis of clinical trials found that people on targeted cancer drugs had roughly three times the risk of developing xerosis, and the authors concluded that patients "should be counseled and treated early for this symptom."^[2]

What chemo-related dry skin often looks and feels like:

• Tight, rough skin that feels dry again within an hour of moisturizing
• Fine white flaking, especially on shins, hands, and feet
• Cracks on fingertips and heels that sting with water or sanitizer
• Persistent itching that disrupts sleep
• Brittle nails and ragged cuticles

What is hand-foot syndrome?

Hand-foot syndrome (HFS), also called palmar-plantar erythrodysesthesia, is a skin reaction to certain cancer drugs that causes redness, swelling, and sometimes blistering on the palms and soles.^[3] It is not the same as hand, foot and mouth disease, which is a viral infection.^[3]

One leading theory is that these drugs injure the tiny blood vessels and surrounding tissue in the hands and feet, where pressure and friction are highest.^[4] That is why walking, gripping, and heat tend to make it worse.

Which chemotherapy drugs cause hand-foot syndrome?

HFS tends to appear within the first 2 to 3 months of treatment^[3] and can worsen with each cycle as doses accumulate.^[6]

Symptoms of hand-foot syndrome

• Tingling, numbness, or a burning sensation in the palms or soles, often the first sign
• Redness that looks like a sunburn
• Swelling and tenderness, especially with walking or gripping
• Dry, thickened, or peeling skin
• In severe cases, blisters, sores, or cracks that make daily tasks hard^[7]

Good news worth repeating: symptoms usually ease once the drug is paused, lowered, or stopped.^[8] Your oncology team has real tools here, so tell them early.

How to care for your hands and feet during chemo

There is no single proven way to prevent HFS, and research points to symptom care with moisturizers, urea ointments, topical steroids, and gloves at night to hold in moisture.^[9] Clinicians at MD Anderson put it simply: "setting up good skin care routines are key."^[3]

A daily routine that protects your skin barrier

1. Wash with lukewarm, not hot, water. Hot showers and dishwater strip protective oils.
2. Use a fragrance-free, soap-free cleanser. Pat dry. Do not rub.
3. Moisturize within 3 minutes of drying off, while skin is still slightly damp, to trap water in.
4. Reapply often: after every handwash and at least 2 to 3 times a day on hands and feet.
5. Seal in overnight. Apply a thick layer, then wear soft cotton gloves and socks to bed.
6. Reduce friction and pressure. Choose loose, cushioned shoes, skip long walks and heavy gripping, and wear gloves for cleaning and gardening.^[7]
7. Avoid harsh chemicals like bleach and strong detergents on bare skin.^[7]

What about urea cream, vitamin B6, and cooling?

• Urea cream: Widely recommended, but the evidence is mixed. A 2025 randomized trial of 216 people on capecitabine found 10% urea cream did not significantly prevent HFS, though severity trended lower in later cycles.^[10]
• Vitamin B6 (pyridoxine): A meta-analysis found high-dose pyridoxine lowered the risk of moderate to severe HFS in capecitabine patients.^[11] Only take it if your oncologist recommends it.
• Cooling: Some cancer centers suggest cool soaks or wrapped cold packs. Do not use cold if you are on oxaliplatin, which can cause cold sensitivity.^[7]

Can raw shea butter help chemo-dry skin?

Raw shea butter is a rich emollient that can help soften rough, flaky skin and reduce water loss, which makes it a reasonable choice for chemo-related dryness on intact skin. It has not been tested in clinical trials for hand-foot syndrome specifically, so think of it as comfort care alongside your oncologist's plan, not a treatment.

What is in shea butter?

Shea butter comes from the nuts of the West African shea tree (Butyrospermum parkii) and has been used in traditional skin care for generations. Two features make it useful for very dry skin:

• Barrier-friendly fatty acids. Oleic and stearic acids make up most of its fat content.^[12] They form a soft protective film that helps slow moisture loss.
• Unusually high unsaponifiables. Shea can contain 7% to 10% unsaponifiable matter, including triterpene esters that have shown anti-inflammatory activity in lab and animal studies.^[13][14]

What does the research show?

• In a 2022 study of 42 people undergoing chemotherapy or radiation, those who used an emollient containing shea butter and other soothing ingredients for about five weeks reported less dryness (61%), redness, and irritation, and 98% said their skin improved. The study was small, had no comparison group, and was run by the cream's maker, so shea's own role can't be separated out.^[16]
• In a randomized, double-blind study of 26 children with mild to moderate eczema, a shea butter and ceramide cream performed well against 1% hydrocortisone for treating and preventing flares.^[15]
• Shea butter is an ingredient in a prescription nonsteroidal eczema cream that has eased itching in adults with atopic dermatitis.^[14]
• Eczema and chemo-related xerosis are different conditions, but both involve a weakened, leaky skin barrier. That shared problem is why rich emollients like shea are worth discussing.

Why raw and unrefined?

Refining uses heat and filtering that can strip some of the naturally occurring compounds. Raw, unrefined shea keeps its natural ivory color, nutty scent, and more of its unsaponifiable fraction. It also contains no added fragrance, which matters when skin is sensitive.

How to use shea butter safely during chemo

1. Ask your oncology team first, especially if you are receiving radiation or using prescription creams.
2. Use only on intact skin. Do not apply to open sores, blisters, or weeping skin.
3. Keep it clean. Use a clean spoon or spatula rather than dipping fingers in the jar. Infection risk is higher when blood counts are low.
4. Warm a pea-size amount between clean palms until it melts, then press into damp skin.
5. Layer it last over any prescribed cream to seal it in, then add cotton gloves or socks overnight.
6. Patch test on a small area for 24 hours if you have a known tree nut allergy. True shea allergy is rare, but caution is wise.

Theobion Softening Shea Balm: one ingredient, nothing extra

When skin is going through this much, fewer ingredients often means fewer surprises. That is the idea behind Theobion Softening Shea Balm: 4 oz of raw, unrefined shea butter with no added fragrance, fillers, or dyes.

"During treatment, your skin needs comfort, not complexity. I made this balm with one ingredient so you always know exactly what you are putting on tender hands and feet."

Dr. Obiageli Ezewuiro, MD, Founder, Theobion

Why people reach for it during treatment:

• Single ingredient: raw, unrefined shea butter, nothing else
• Fragrance-free for skin that reacts to everything right now
• Rich, melt-on texture designed to help soften rough, cracked-feeling hands, heels, and cuticles
• Overnight-friendly: helps seal in moisture under cotton gloves and socks
• Cruelty-free and made in the USA
• Thoughtful gift for a friend or family member starting chemo

How to use it: warm a small amount between clean palms, press into slightly damp skin on hands, feet, elbows, and cuticles, and reapply as often as you like. Use a clean spatula to scoop from the jar.

For drier facial skin during treatment, pair it with Barrier Cushion Peptide Cream, our fragrance-free daily moisturizer designed to help support a stronger-looking skin barrier.

Softening Shea Balm is a cosmetic moisturizer. It is not intended to diagnose, treat, cure, or prevent hand-foot syndrome or any disease.

When to call your oncology team

Frequently asked questions

Medical disclaimer: This article is for general education and is not a substitute for advice from your oncologist, dermatologist, or care team. Do not change your treatment or skin care routine during chemotherapy without talking to them first.