Comment prendre soin de votre peau pendant la chimiothérapie

What is chemotherapy?

Chemotherapy is a type of traitement contre le cancer that aims to prolong life or reduce symptoms. It may also be given with the intention of curing someone's cancer. Chemo uses anti-cancer medicines called cytotoxic medicines (also called cytotoxic drugs).

Chemotherapy often has a range of side effects on skin and nails. Most tend to be manageable, but some can be more severe if you are receiving a stem cell transplant, targeted therapy, or immunotherapy.

Common effects of chemotherapy on skin

• Alopecia - the absence of hair from where it usually grows, although the hairline is often spared.

• Mucositis - sore mucosal parts of skin (areas with thin skin that covers the inside surface of parts of the body and produces mucus to protect them), especially the mouth.

• Skin dryness and brittle nails - can also lead to white lines and ridges developing.

• Skin eruption and pruritus - itchy rashes.

• Hyperpigmentation - includes nails and mucosal areas.

Rare side effects of chemotherapy on skin

• Photosensitivity.

• Facial flushing.

• Acral dermatitis - red and sore palms and soles of feet.

• Exfoliative 'recall' dermatitis - drug reaction causing inflammation, peeling and painful skin.

• Hidradenitis - profuse sweating.

• Hypersensitive skin - with or without a rash.

• Raynaud's phenomenon - cold, red and painful palms and soles.

• Injection site reaction.

There's also a chance of developing skin lesions and scleroderma, which are unique side effects of chemotherapy.

Dermatologist Julie Van Onselen explains that the side effects that you experience will depend on the chemotoxic agent (the drug that targets the cancer cells in an attempt to kill them or stop their growth). Therefore, patients need to ask about potential skin side effects.

While most side effects of chemotherapy tend to be temporary and disappear after treatment has been completed, there's a chance some side effects can continue to affect you longer term.

General side effects of chemotherapy include tiredness, lower resistance to infection and, in some cases, infertility.

As for skin, you might find that you get rashes more frequently. This is due to the chemotherapy medicines interfering with the rapid growth of cells in your body. It's normal to also find that your skin is increasingly more sensitive to sun exposure which drives home the importance of wearing SPF and protective clothing while in the sun, especially as you are then at risk of secondary cancers like cancer de la peau.

Chemotherapy can also affect tooth health long-term, sometimes affecting enamel and increasing the risk of long-term dental problems. Chemotherapy may lead to les maladies des gencives and lower saliva production too, causing dryness in the mouth.

Van Onselen stresses that any changes to your skin should be reported to your oncology team. While skin problems are common with chemotherapy use, they need to be diagnosed correctly.

"In many cases, therapeutic measures to reduce their severity and duration must be introduced as soon as possible. Sometimes, cutaneous toxicity (a reaction to the drug in treatment) means having to reduce the dose, delay cycles, or even stop cancer therapy."

Caring for dry skin during chemotherapy

To reduce dryness as much as possible during chemotherapy, you should keep your skin nourished with a gentle, non-fragranced medical emollient. This works like a moisturiser that you apply directly to your skin. It will cover the skin with a protective film to trap moisture and soothe dry patches.

There is a range of choices available for emollients since they are also used to treat conditions such as eczéma, psoriasis, and ichthyosis. Ask your oncology team or local pharmacist for advice.

As well as using an emollient to moisturise, you can use an emollient wash. Van Onselen suggests avoiding soap and cosmetic washes, as these will cause more skin dryness and irritation.

Additionally, she advises steering clear of aqueous cream, despite this being recommended by some professionals. This is known to damage the skin barrier and, since your skin is already sensitive and fragile, you need to use emollients that restore the barrier.

Some brands where you could find emollients include:

• Nursem and O'Keeffe's for hands.

• Flexitol for feet.

• CeraVe for face and body.

Caring for sore hands and feet during chemotherapy

Hand-foot syndrome (also called palmar-plantar erythrodysaesthesia) is a side effect of some chemotherapy drugs. This can lead to palms and soles becoming red, swollen, and blistered.

While only a handful of drugs tend to cause it, it can be painful so it's something to be mindful of so it can be treated early on.

The drugs that may cause hand-foot syndrome are:

• 5-fluorouracil.

• Capecitabine.

• Docetaxel.

• Cytarabine.

• Doxorubicin.

• Liposomal doxorubicin.

Some cancers treated with these drugs include ulcères de l'estomac, pancreatic, breast, et ovarian.

For treatment of hand-foot syndrome, topical steroid creams may be prescribed, or chemo dose might be altered. You should use moisturisers to combat dryness and rough skin.

General soreness

For general soreness of hands and feet, use an emollient ointment at night underneath cotton gloves/socks to give your skin a moisture surge. Van Onselen explains that this will help prevent painful fissures (cracks) as well.

It's a good idea to keep a small pot or tube of emollient with you when you are out and about. This means you can reapply to your hands on the go, and use it to wash with too. Remember that alcohol gels will cause more dryness and irritation.

Caring for lips and teeth

If your lips become sore, use a non-fragranced lip balm. Apply this multiple times throughout the day for best results.

Some good natural lip balm brands to use include:

• Burt's Bees.

• Vaseline.

• Le Labo.

• Palmer's.

To combat chapped lips, you should also avoid sun exposure, as this can make them worse. Lip balms with SPF in are available too.

Make sure to drink plenty of water to keep your lips hydrated, lightly exfoliate with a lip scrub to remove dead skin, and try not to irritate your lips by picking or biting them.

Van Onselen adds that you should use an antibacterial mouthwash to clean your teeth. Anaesthetic (numbing) mouthwashes can be helpful, and chewing sugar-free gum can stimulate your own saliva and prevent soreness.

Van Onselen stresses the importance of protecting your skin from the sun with at least SPF 30 all year round. If you're undergoing chemotherapy, in the summertime, avoid the hottest parts of the day (usually around 3 pm) by staying indoors.

If you are venturing outside, wear protective clothing, such as a hat, sunglasses, and a lightweight cotton cover-up to shield your arms and shoulders - this will help prevent the darkening of hyperpigmentation.

"If profuse sweating occurs, ask for a medical antiperspirant, which will be more effective than a regular deodorant. You should change your clothes frequently in this instance too."

Just as it's important to protect your skin when it's hot, you should be mindful of the cold too, as dry and windy weather conditions can aggravate your skin, which you will be more susceptible to.

During winter, keep your hands and feet warm by wearing gloves and thick socks. Bundle up with layers of other clothing too, ensuring each is breathable to prevent sweating. You should use moisturiser regularly on your skin and lips, use soaps and laundry detergents that are gentle and fragrance-free, and limit the time you spend in baths and showers to prevent dry and itchy skin.

• Cancer research advice.

• Chemotherapy and skin reactions.