Does Medicare cover any kind of incontinence garments?

I don't believe that Medicare covers that. Medicaid does. Would she qualify for that?

Medicare does not cover incontinence supplies. Medicaid generally doesn't either, depending on your state. There are some businesses that have been growing leaps and bounds that sell used medical equipment that has been donated and cleaned up. There are some locations that will order incontinence supplies wholesale and then pass the savings on to you. I would definitely search if there are any of these businesses near you.