Does anyone have experience of getting rid of skin tags?

I have a skin tag and it rubs on my clothes. I want to try and get rid of it. I am looking at DIY options because I cannot get my GP to deal with it – it’s considered ‘cosmetic’ by the NHS and I would have to pay to have it removed privately. Not going to happen. One of the treatments that NHS Choices suggests is tying a piece of thread or floss around the stem of the tag to cut off the circulation. I want to try this but I am nervous. Does anyone have experience of doing this? Does it hurt? What happens to the skin tag? How long does it take?