From looking at your photo I would suggest you are a good candidate for CoolSculpting. In my practice I find the best results are achieved for patients who are near their ideal weight and simply want to remove more stubborn areas. I would recommend a consultation to be sure.
Yes itching is a normal sensation post-treatment. Typically the itching starts a few days following treatment and might last for a couple of weeks. I recommend return to your practitioner if the sensation worsens or does not subside.