The ketogenic diet is a low-carb, high-fat diet that includes very little carbohydrate. Although the keto diet has several potential health benefits, it can also have unforeseen repercussions, such as keto rash. Prurigo pigmentosa is another name for keto rash. In this article, we will explore what keto rash is, how to avoid it, and if you get it, how to get rid of it quickly.