Medical Oncologist
Sunitinib side effects
Hand-Foot Skin Reaction on Sunitinib: — Prevention From Day One
Hand-foot skin reaction is one of the most common side effects of sunitinib. It is not dangerous when managed early, but it can become severe enough to interrupt your treatment. Starting prevention on day one — before any symptoms appear — is the most effective thing you can do.
Medically reviewed by Dr. Bharati Devi Gorantla, Medical Oncologist, MBBS · MD · DM (Adyar, Chennai) · ECMO · MRCP SCE (UK) · Last reviewed August 2026
- Start prevention immediately — Moisturising and protecting your skin from day one reduces how severe the reaction becomes.
- Not an allergic reaction — This is a direct effect of sunitinib on skin blood vessels, not an allergy — antihistamines will not help.
- Grade determines the action — Mild tingling is manageable at home. Blistering or severe pain needs your oncology team today.
- Do not stop sunitinib yourself — Dose changes must be decided by your oncologist. Stopping without advice can affect your treatment outcome.
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Hand-foot skin reaction is one of the most common side effects of sunitinib. It is not dangerous when caught early, but it can become severe enough to interrupt your treatment. Mild redness or tingling can be managed at home. Blistering, open skin, or pain that stops you walking needs a same-day call to your team.
Is hand-foot skin reaction dangerous, and what can you manage at home?
Hand-foot skin reaction is not life-threatening when it is caught at the mild stage. It becomes a problem when it is left unmanaged and progresses to open blisters or prevents you from walking and doing basic tasks.
Mild symptoms — tingling, warmth, or slight redness on the palms or soles — can be managed at home with thick moisturiser applied two to three times a day and cushioned, well-fitting footwear.
If symptoms are clearly worsening from one day to the next, call your team before your next scheduled visit. Waiting is the wrong approach when skin is breaking down.
Do not stop sunitinib on your own. Dose changes are clinical decisions that your oncologist makes based on the full picture.
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What to do from day one — before symptoms appear
- Apply a thick urea-based or petroleum-jelly-based moisturiser to your palms and soles twice daily from the first day of treatment.
- Wear well-cushioned, well-fitting shoes. Avoid tight footwear, open sandals, and high heels.
- Use padded insoles to protect high-pressure areas on the soles of your feet.
- Wear cotton gloves during housework, cooking, and gardening to reduce friction on your palms.
- Keep nails trimmed short and clean.
- Tell your doctor about any existing calluses before your first cycle — treating them early reduces the risk of blistering at those sites.
- Avoid soaking your hands or feet in hot water. Lukewarm is fine.
- Report what your skin looks like at every visit, even if it seems minor.
How do you grade what you are seeing?
| Grade | What you see and feel | What to do |
|---|---|---|
| Grade 1 — Mild | Tingling, numbness, or redness. No pain. Skin is intact. | Continue sunitinib. Increase moisturising. Protect pressure points. Report at next visit. |
| Grade 2 — Moderate | Skin changes with pain. May include early blistering. Affects everyday tasks such as walking or housework. | Call your oncology team today. Do not wait for your next appointment. A dose adjustment may be needed. |
| Grade 3 — Severe | Severe skin changes with significant pain. You cannot walk normally, dress, or use your hands for basic tasks. | Call your team or go to the emergency department today. NCCN guidance recommends holding sunitinib until skin heals. |
| Typically starts | Often in the first weeks of the first treatment cycle, before the scheduled off-period — commonly on the heels, balls of the feet, and fingertips. | This predictable timing is why prevention from day one, before any symptoms appear, is effective. |
Did you know?
Hand-foot skin reaction is one of the most frequently cited reasons for dose reduction or treatment interruption in patients taking sunitinib.
Consistent skin care started before symptoms appear — not after — is what keeps many people on their full planned dose.
Source: NCCN Clinical Practice Guidelines in Oncology: Kidney Cancer
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Common questions
Frequently asked questions
How quickly does hand-foot skin reaction appear on sunitinib?
It most commonly appears during the first treatment cycle, in the weeks before the scheduled off-period. This predictable timing is exactly why your care team asks you to start skin care from day one. Symptoms tend to start on the areas of the feet and hands that bear the most pressure or friction — the heels, balls of the feet, and fingertips. If you notice anything in the first weeks, report it early rather than waiting to see how it develops.
Can I still walk and exercise normally?
At Grade 1, light walking is generally fine if you are wearing well-cushioned shoes and protecting pressure points. When symptoms progress to Grade 2 — where walking becomes painful — reduce activities that put pressure on your feet and call your team. Grade 3 means walking is significantly limited and requires same-day contact. Do not push through pain to exercise; it worsens the skin and can turn manageable redness into open blisters.
Which moisturiser should I use?
Ask your oncology team or the dispensing pharmacist what they recommend for your skin type, as the right product varies. Generally, a thick urea-containing cream or plain petroleum jelly is more effective than a light lotion. Thin, water-based moisturisers absorb quickly but do not provide the barrier protection your skin needs during sunitinib treatment. Apply to slightly damp skin after washing for better absorption, and do not skip days even when your skin looks fine.
Will the skin reaction improve during the off weeks between cycles?
Sunitinib is commonly given in cycles of four weeks on and two weeks off. Many people find that skin symptoms ease during the off period, which is one reason the schedule is structured this way. However, the pattern varies. If your skin does not clearly improve during the break, or if symptoms are still significant when the next cycle is due to start, tell your team before restarting. Do not assume the next cycle will be fine if this one was not.
Does hand-foot skin reaction mean the sunitinib is working?
There is some research exploring whether skin reactions might correlate with treatment response, but this relationship is not established well enough to rely on as a signal. Major oncology bodies including NCCN and ASCO do not use the presence or absence of hand-foot skin reaction as evidence that treatment is or is not working. Your response is assessed through scheduled imaging. Manage the skin reaction for your comfort and function — not as a way of reading how the treatment is going.