Made a boo boo on knitting my sock

[Puddinpop]

I just noticed a strand of yarn over about three stitches in a couple of places, down about four rows. I need to frog to those mistakes, but goodness, how in the world do I do this? I used my spare needle to try and go under the mistake under one needle. I know I can't just rip out that one needle and make it go down to there. Also, I don't know which way to pick up the stitches. Do I insert needle into the front part of the stitch or the last part of the stitch?

[tarrentella]

insert the needle from right to left asx you go across the row. you could use a circular needle to pick up around the whole sock as they can rest on the cable.

Alternatives if it a simple pattern (like stockinette) then you could just drop thos stitches off the needle, run them down to where you made a mistake and then use a crochet neddle to work them back up properly.