@suecreader I love to help people and since I,ve experience these problems one way or the other I'm glad to help. The Tens unit has 4 pads he applies. He puts 2 around the bra area then 2 in the scareal area or lower back. then adjust them to your comfort I accidentally added more stem to it and felt my muscles twitch , to much . then he puts ice on top for 10 minutes. Mine at home is for 15 minutes . Also today since my neck was giving me problems he put 2 at the base of neck then 2 base of skull on either side . I really love my chiropractor don't know what I,d do without him.With the legs you can apply at thigh then lower . But my recommendation for RLS is drinking a swallow of dill pickle juice sounds crazy but the vinegar in it relaxes the muscles. A friend of mine when out carry,s mustard packets and takes , that's a little much for me.