It depends on the damage. It may be best to remove them, give them a good sanding, and then refinish them.
You may find some help here:
Refinishing mobile home cabinets:
Check out Rejuvenate if they are actual wood. It's a good restoration product that lasts quite a while. I used it on my floors and 9 months later they still look great.
Hi Sam. Here are some instructions on restoring your cabinets. Hope this is helpful. www.re-fabbed.com › mobile-home-cabinet-makeover
Mobile Home Cabinet Makeover - Re-Fabbed
Sep 19, 2017 - Mobile Home Cabinet Makeover using Mint to Be by Valspar! ... These cabinets are NOT real wood. ... theirs, but with this being a temporary home and very inexpensive made cabinetry, I opted for an easy fix that looked good.
Restor-a-finish does amazing things!