After radiation treatment, a client reports dryness, redness, and scaling of his skin occurring within the designated radiation treatment markings. The nurse should instruct the client to take which of the following actions?

Rationale: A. Washing with plain soap and water can further irritate the sensitive, radiated skin. Harsh soaps and frequent washing remove protective oils and worsen dryness and redness. Clients should use only mild, fragrance-free cleansers if washing is necessary. B. Applying moist heat is contraindicated. Radiated skin is already fragile and at risk for breakdown and burns; heat therapy increases the likelihood of further tissue injury. C. Sitting in the sun for 10 min per day is unsafe because ultraviolet exposure exacerbates radiation-induced skin damage, increases discomfort, and delays healing. D. Applying hydrating lotions is the most appropriate action. Using non-irritating, fragrance-free, water-based moisturizers (avoiding those with alcohol or metal ingredients like zinc or aluminum) helps soothe dryness, promote healing, and reduce discomfort. Clients should apply lotion gently, avoiding vigorous rubbing, and should not apply it immediately before radiation sessions to prevent skin reactions.