A nurse is providing teaching to a client who has a skin infection and a new prescription for gentamicin topical cream. Which of the following instructions should the nurse provide?

Choice A reason: Increasing fluid intake is not relevant for topical gentamicin, which is not systemically absorbed in significant amounts. Choice B reason: Gentamicin topical cream is not used near the eyes and does not cause blurred vision unless misused. Choice C reason: Cleaning the affected area with soap and water before application ensures removal of debris and enhances absorption of the medication. Choice D reason: Gentamicin should be applied only to the affected area to avoid unnecessary exposure and potential irritation.