Acupuncture tacks. I was having acupuncture and my RLS kicked up. The acupuncture was putting needles ( or what they use) down my spine between the shoulder blades but lower. The RLS stopped immediately.
When my RLS starts my husband puts a tack where I have a divit or a slight depression beside my spine to stop the RLS.
It's been few years using the tacks, still works.