Skin Tear and Duoderm Question

I have a HH patient with a skin tear on the back of her LLL. The skin pretty much peeled off so there were no edges to approximate. I am by no means a wound care expert, so I just did what I'd seen done in the past. I cleansed it with NS, applied a vaseline gauze type product, and wrapped it with Kerlex and paper tape. The family is going to change it once daily. Well, she's a once a week patient and I didn't see her last week, another nurse did. Well, when this nurse saw her she got the tx changed to duoderm. I've never seen that on a skin tear before and it seems to me to have made it worse, especially when it pulls off, even after 3-5 days. She has very fragile skin and the idea of putting duoderm on it scares me to death. But again, I'm not by any means well versed in wound care, and the doc just goes along with whatever we recommend. What have been your experiences? I know when I worked in LTC we just put tegaderms over them or tegaderm plus if it was draining. We used hydrogel or vaseline gauze on the worse ones. But I've never seen duoderm for a skin tear. But being the newbie here, don't wanna step on any toes, especially not being that versed in wound care. Will the duoderm do the trick? Thanks for any input!