How long after treating scabbies once with cream, do you keep itching and getting bumps?

I treated scabbies for close to a year with cream and then over a about a week near the end of the year, it miraculously went away. I really don't know why but I was very thankful that it did. 2 to 3 times a year I would say, I will get a small little outbreak on a finger or two, but it only lasts a couple of hours and then it goes away.