SSKI has limited use but if you can't get anything else, I would snap it up.
Even the old medical books from 100 years ago preferred both Iodine combined withe IODIDE. And this was at a time when many forms of Iodine were available for prescribing.
I prefer Iodoral by mouth but use Lugol's for topical use. If you have a serious situation such as breast/ovarian cysts or cancer, I would use Iodoral because you need to know how much you are taking and that it is getting absorbed.
Be careful not to get Lugol's on your counter tops or clothing :(