What is an important aspect of self-care for clients undergoing radiation therapy?

Rationale: A. Applying hot packs, heating pads, or extreme heat to the treated area can increase skin irritation or cause burns, especially since radiation therapy sensitizes the skin. This is not recommended. B. Radiation therapy can make the skin in the treated area very sensitive and prone to damage. Sun exposure can increase redness, blistering, and long-term skin changes, so patients should protect the area from sunlight by wearing clothing or using protective barriers. C. Spicy or acidic foods can irritate the mouth or gastrointestinal tract, particularly if radiation involves the head, neck, or abdomen. Patients are usually advised to avoid these foods if the treated area is affected. D. Strenuous exercise can irritate the skin and exacerbate fatigue caused by radiation therapy. Light activity may be encouraged for general health, but overexertion is discouraged during treatment.