Does underarms laser treatment leads to rough skin?

2 days back, I had my 1st session of laser treatment. Till now, I have just used wax to remove hair and that always led to smooth skin as the hair used to get removed from root. But, during laser treatment, they shave the area and it breaks the hair from the surface. And so it gives roughness in that area. Would it persist till end? Or would it get smooth as the sessions pass by?