I do have a question you may be able to answer. The gentamicin ointment - they gave me a tiny tube, like 15 grams, and no refills, and told me I'm supposed to use it every time I change the bandages. The nurse told me I'm supposed to do that three to four times daily. How the heck am I supposed to make that tiny little tube of ointment stretch through three bandage changes a day for two weeks?