How to undo hypnotism?

I asked this question before, but just wanted more answers. I was hypnotized and now I'm convinced that there were side effects from it (I'm willing to give the benefit of the doubt that they were unintentional). Nothing big, just small annoyances. I was wondering how to get rid of those side effects. Would I have to be hypnotized again to get rid of them? If so, exactly how should I go about doing it? By the way, I am highly succeptible to hypnosis, if that provides more information.