If your lactose intolerance is a Primary intolerance due to a genetic lactase mutation then the answer is no it can’t be cured. If however it is a transient lactase deficiency due to injury to the villi of the gut whether it be as a result of gut infection, antibiotic use or other, through means of gut repair and regeneration, the lactase production can be resumed resulting in a “cured” lactose intolerance.