Diclofenac sodium is available as a gel and diclofenac epolamine is available as a patch, in the USA. I don't have access to a print PDR right now, and the online version is only available to licensed prescribers, but the layperson's version says that it's prescribed "as a last resort [emphasis mine] to relieve acute pain due to minor strains, sprains, and bruises." That doesn't make it sound like it's much safer than the oral version...

Then there are salicylate pain patches (related to aspirin) that are available over the counter in the USA.