You can remove skin tags at home by taking some dental floss and tying off the blood supply to the skin tag and then cutting the skin tag off with surgical Scissors.
That is if you're brave enough to do such a thing. There's no way I could cut any part of my body off by myself and would have to have a doctor to remove the skin tag for me.
But you can do it at home if you want to.
You could also try some wart remover that should work to freeze the skin tag off which would be a much better option if you don't want to go to the doctor to have the skin tag removed.