The effect varies from person to person, but they said it lasts 3 to 6 months. They said the effect appears within 2 weeks after the injection. It does not magically make you stop sweating. If you already sweat a lot, you will sweat less; if you did not sweat much, you will not sweat much.
I was getting ready to grab the doctor's collar because I thought it would hurt, but maybe because the anesthesia took a long time, it did not hurt at all,,, it was fine! (It feels not that different from underarm laser hair removal!)
No intense exercise for one week after the shot, and no alcohol the next day, but yesterday I just ignored that and chugged wine, and nothing happened.