Ugh! I too had this embarrassing problem! 29 year old female who once had a hemorrhoid that went away and left this nasty flap of skin behind. I went to 4 doctors none would remove the skin tag. They said "it will come back" or "its best to just leave those things alone." Finally a dermatologist agreed to cut it off and cauterize it. However 6 weeks later it looked worse! it looked there was just a chunk taken out of one large skin tag and it now appeared to be two small skin tags. I went back after 6 weeks and he said "sorry come back in 6 months and maybe we can do something. but I think you should leave it alone." Not to mention for 3 weeks after the dermatologist cut it off the area was extremely swollen.
Finally I took matters in my own hands.
I ordered surgical scissors online. I used alcohol to sanitize, LOTS of gauze,and betadine to prep the area. I used nothing for numbing. I was so desperate I didn't even care. And with a few snips I chopped the darn thing off. I did kind of the squeeze and hold method described by someone who use nail clippers. Where I snipped to where it hurt then let it go numb then snipped a little deeper. I put Neosporin on it. Will let you know how it heals!