Stretch Marks and Large Surgery Scars

Hi! I have both and I was just wondering if anyone has had success getting them removed in Taiwan (and for how much)? I do have the NHI but I guess I feel like a bit of a jerk just going to a hospital and asking a regular dermatologist there how much it would be to get them off. Is this a normal practice? Or will they look at me like I’m a crazy foreigner?