A nurse is reinforcing teaching with a client who is undergoing radiation therapy to the neck. Which of the following instructions should the nurse include in the teaching?

Radiation therapy can cause increased sensitivity and dryness in the skin. Exposing the neck to cold temperatures may exacerbate these symptoms and potentially lead to discomfort or skin damage. Encourage the client to keep the neck covered and warm, especially when going outside in cold weather. While proper nutrition is important during radiation therapy, the specific instruction to eat three large meals each day is not necessarily applicable or beneficial. It is generally recommended to have a balanced and nutritious diet, which may include smaller, frequent meals or snacks if the client's appetite is affected. During radiation therapy, the skin in the treatment area can become sensitive and prone to irritation. Rubbing the neck vigorously with a washcloth can further irritate the skin. Instead, advise the client to gently cleanse the neck using a mild, non-irritating soap and patting the skin dry with a soft towel. While radiation therapy can cause certain side effects, such as dry mouth or difficulty swallowing, it is generally not necessary to restrict fluid intake unless specifically advised by the healthcare provider. Adequate hydration is important for overall health and well-being, and the client should be encouraged to drink enough fluids unless instructed otherwise.