According to Dr. A, it can take up to a week to recover from a treat like the cone and get back to losing weight. Plus if you have candidia the sugars in the icecream and the dairy can feed them, making them flair up even worse. You can also retain water if on those days you ate the 20g carb you were having salty foods or processed foods such as pork rinds, sausage, bacon and so on.