I had an abnormal smear result about 8 years ago and had to go for a colposcopy. That indicated a problem so I had to go back a few weeks later for another, and they did the treatment (called Leep?) laser something or other, they cut a cone shaped lump out of my cervix. It was very unpleasant, I had to go to the pub after and get drunk. I had to have smear tests every 6 months for a few years after, but everything's been fine since and it saved me having a hysterectomy.
Good luck, I hope yours shows no problems. Better to be safe than sorry though.