A nurse is reinforcing teaching a client who has a new prescription for gentamycin ointment to treat a skin infection. Which of the following statements by the client indicates an understanding of the teaching?

A. Gentamycin ointment is typically applied to the affected area and then covered with a sterile dressing to enhance absorption and prevent contamination. Leaving it open to the air may reduce its effectiveness. B. Gentamycin ointment is not known to cause blurry vision, as it is applied topically to the skin and does not typically affect vision. C. Gentamycin ointment should only be applied to the specific area of infection as directed by the healthcare provider. Applying it to large areas unnecessarily may increase the risk of adverse effects and antibiotic resistance. D. Proper cleansing of the affected area before applying gentamycin ointment helps remove debris and bacteria, promoting better medication absorption and effectiveness.