Skin side effects are changes to the skin caused by a disease or treatment. These changes can range from mild to severe. Skin side effects are common in children with cancer, sickle cell disease, immune disorders, and other serious illnesses.
Skin problems can be uncomfortable and may increase the risk of infection. Finding and treating skin problems early can help keep them from getting worse.
Your care team can explain which skin side effects may happen with your child's treatment and how to help prevent or manage them.
Follow your care team’s instructions and check for skin changes regularly. Tell your care team about any concerns right away.
Common skin problems caused by a disease or treatment include:
Skin problems during radiation therapy are common. Many children have skin changes in the treated area.
Possible skin changes include:
Skin side effects usually appear during the first few weeks of treatment. They often improve after treatment ends.
But skin may stay sensitive to the sun during and after treatment. Some children may also develop a skin reaction called radiation recall after getting chemotherapy.
Skin needs special care during radiation therapy. Read more about skin care during radiation therapy.
Radiation recall is a skin reaction. It happens when certain chemotherapy medicines are given after radiation treatment. The skin in the radiation treatment area becomes red and inflamed. It may look like a severe sunburn. The symptoms usually improve after the medicine is stopped.
Chemotherapy can affect healthy skin cells. Your care team can tell you what skin changes to expect based on the type of chemo your child receives.
Common skin side effects of chemotherapy include:
Certain chemotherapy medicines can make the skin, nails, or hair become darker or change color.
Some medicines can irritate the skin around the IV or injection site. If medicine leaks outside the vein, it can damage nearby skin and tissue. Tell your care team right away if your child has pain, burning, stinging, swelling, or redness near the IV or injection site.
Steroid medicines are used to help treat many conditions. These medicines can cause skin side effects such as:
Skin side effects depend on:
Targeted therapies can affect healthy skin cells. Many skin side effects of targeted therapy are mild. They depend on the type and dose of the drug.
Possible side effects include:
Hand-foot syndrome, also called palmar-plantar erythrodysesthesia, is a skin reaction that can happen with some chemotherapy and targeted therapy medicines. It usually affects the palms of the hands and soles of the feet. Severe symptoms can make it painful to walk or hold objects.
Signs and symptoms of hand-foot syndrome may include:
Medicines that may cause hand-foot syndrome include:
Hand-foot syndrome may not appear until weeks or months after treatment starts. Treatment may include:
If hand-foot syndrome is severe, your care team may change or pause treatment until symptoms improve.
If your child has hand-foot syndrome, they should:
Immunotherapy uses the body’s immune system to fight cancer. Sometimes the immune system can also affect healthy cells, causing side effects.
Skin side effects may include:
Children who have a stem cell transplant (bone marrow transplant) may have skin side effects due to chemotherapy, radiation, or graft-versus-host disease (GVHD). GVHD happens when donor cells attack healthy tissues. It can be acute (short-term) or chronic (long-term).
Symptoms of acute GVHD of the skin include:
The rash often starts on the neck, ears, shoulders, palms of the hands, or soles of the feet.
Symptoms of chronic GVHD of the skin include:
GVHD can be severe. It may develop months after transplant. Tell your care team if you think your child has signs of GVHD.
Treatment depends on the type of skin problem your child has and how severe it is.
To manage skin problems:
Your health care provider may prescribe:
These medicines may be applied to the skin or taken by mouth.
If treatment causes severe skin problems, your care team may lower the dose, pause treatment, or change to a different treatment until symptoms get better. Your child’s care provider may refer them to a dermatologist, a doctor who specializes in treating skin conditions.
Tell your care team about any skin problems during and after treatment.
To help care for your child’s skin:
Contact your care team right away if your child has:
Always talk to your care team before using a new skin care product or medicine. Tell your care team about any skin changes or worsening skin problems. Early treatment can help prevent infection and other complications.
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Reviewed: August 2026
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