Radiotherapy Has Started — How Should I Care for My Skin and Body?

Dr Vidhi Vaghasiya | MD Radiation Oncologist | Bhavnagar

When you start radiotherapy, you may receive many different suggestions from relatives, friends, neighbours or other patients:

“Apply oil every day.”

“Use this cream.”

“Rub the skin if it becomes dark.”

“Wash it properly with soap.”

“Apply some home remedy so that the skin does not burn.”

Most of this advice is well-intentioned. But during radiotherapy, the skin and tissues inside the treatment area can become more sensitive than usual. So I usually tell my patients something very simple:

The Less you do, The Better. In fact, don't do anything without asking your oncologist first.

Your radiotherapy team will guide you according to the area being treated, the radiation dose and how your skin is reacting. Until then, avoid experimenting with multiple products.

Why Does the Skin Need Special Care During Radiotherapy?

Radiotherapy is directed precisely toward the area that needs treatment. If the skin lies in the radiation field, it may gradually become sensitive.

You may notice:

These changes usually do not happen after the first radiation session. They tend to develop gradually as treatment continues.

Not everyone develops the same reaction. Some patients have almost no visible skin changes, while others may develop more noticeable redness or peeling.

That does not automatically mean that something has gone wrong with the treatment.

Avoid Soap Over the Radiation Area Unless Your Team Allows It

Once radiation has started, I generally advise patients to avoid unnecessarily rubbing or repeatedly washing the treated area with soap.

Soap, particularly strongly scented or harsh soap, can dry or irritate sensitive skin.

You can maintain normal personal hygiene, but the radiation-treated area should be handled gently.

If your department specifically advises a mild soap or cleanser, follow their instructions. Different treatment centres may use slightly different skin-care protocols.

The important point is:

Do not scrub the radiation area.

Do Not Apply Oil on Your Own

Patients often ask:

“Doctor, can I apply coconut oil?”

“Can I massage with oil?”

“Can I apply ghee?”

“Can I apply herbal oil?”

Please do not apply oils over the radiation field unless your radiation oncologist has specifically advised you to do so.

The same rule applies to home remedies.

Radiotherapy skin is not the place to experiment your remedies.

Something that feels soothing initially may later irritate your skin, particularly when repeated rubbing or massage is involved.

Do Not Use Random Ointments or Creams

Another common mistake is applying several different creams once redness begins.

A relative may suggest an antibiotic cream.

Someone else may recommend an antifungal cream.

Another patient may suggest a steroid cream.

You may then end up applying three or four products without knowing what your skin actually needs.

Please avoid this.

If your skin develops a reaction, show it to your radiation oncologist.

Depending on the appearance, your doctor may recommend a particular moisturiser, topical medicine, dressing or other treatment.

The correct product depends on what type of skin reaction you have.

Do not assume every redness needs an antibiotic or every itching needs a steroid.

Wear Loose, Comfortable Clothes

During radiotherapy, clothing repeatedly rubbing against the treated skin can increase irritation.

Wear loose, soft and comfortable clothing, especially if radiation is being given to areas such as:

Try to avoid tight collars, tight bras over irritated areas, rough fabrics, tight elastic bands or anything that repeatedly rubs against the radiation field.

Comfort becomes increasingly important as treatment progresses.

Do Not Rub or Scratch the Area

Radiation-treated skin may become itchy.

The natural response is to scratch it.

Try not to.

Repeated scratching can damage already sensitive skin and may make irritation worse.

Similarly, avoid vigorous towel drying.

After bathing, gently pat the area dry rather than rubbing it.

Avoid loofahs, scrubs, pumice stones and exfoliating products over the treatment area.

Treat the skin gently.

Avoid Shaving the Radiation Area

If hair grows within the radiation field, avoid routine shaving once treatment has started unless your radiation team says it is safe.

Razors can produce tiny cuts or friction injuries that may irritate sensitive skin.

This is especially relevant during radiotherapy to the face, neck, underarm or pelvic regions.

If hair removal becomes necessary, ask your treatment team first.

Do not use waxing, hair-removal creams or aggressive shaving over irradiated skin without medical advice.

Protect the Radiation Area From Heat and Friction

Please avoid direct heating over the treatment area.

That means avoiding:

Also avoid unnecessarily exposing the treated skin to strong sunlight.

Radiation-treated skin can remain more sensitive for some time even after treatment has finished.

Do Not Remove Treatment Marks Yourself

Depending on the radiotherapy technique being used, your department may place temporary skin markings or tiny permanent tattoo marks for treatment positioning.

If you have temporary markings, do not deliberately scrub them off.

These marks may help the radiation therapy team reproduce your position accurately every day.

If they fade, tell the technologist or your radiation team instead of trying to redraw them yourself.

Should I Stop Bathing During Radiotherapy?

No.

Radiotherapy does not mean you should stop bathing or stop maintaining hygiene.

You can usually bathe normally, but be gentle around the treatment area.

Avoid vigorous rubbing, excessively hot water and harsh products.

Your department may give specific instructions depending on the treatment site and your skin condition.

Most Important: Show Changes to Your Oncologist

Do not silently tolerate a worsening skin reaction because you think:

“This is probably normal during radiation.”

Some reactions are expected, but your oncologist still needs to know about them.

Please report if you develop:

Your radiation oncologist can assess whether the reaction is expected, whether medication is needed, or whether additional skin care is required.

One Simple Rule to Remember

Once radiotherapy starts, think of the treated skin as sensitive skin that should be protected rather than treated aggressively.

So remember:

No unnecessary soap.
No oil or massage.
No random ointments.
No shaving, scratching or rubbing.
Wear loose clothes.
And report any significant skin change to your radiation oncologist.

Your skin reaction will depend on your treatment area and radiation dose, so follow the instructions given by your own radiotherapy team even if another patient has been advised something different.

Radiotherapy skin care does not require complicated remedies.

In most cases, the safest approach is simple:

Keep the area clean, keep it comfortable, avoid unnecessary irritation, and let your oncology team guide you if a reaction develops.