What is a common side effect of radiation therapy that involves changes in skin appearance?

Erythema is a common side effect of radiation therapy characterized by redness of the skin that occurs due to inflammation. When skin is exposed to radiation, it can cause damage to the surrounding tissues, leading to increased blood flow and the characteristic redness associated with erythema. This reaction is similar to a sunburn and may appear a few days after the treatment begins, peaking in intensity approximately two weeks after radiation exposure.

The management of erythema includes gentle skin care, hydration, and the use of protective barriers to minimize further irritation. Recognizing erythema is crucial for oncology nurses as it helps in assessing the patient's response to therapy and planning further interventions.

In contrast, while tenderness, infection, and discoloration can also occur as side effects of radiation, they are not as specific or commonly recognized as immediate signs of therapy-induced skin changes. Erythema is the primary visual indicator that patients may experience during and shortly after radiation treatment.