DEAR READER: There are several remedies that might help your granddaughter. One herbal recommendation is hawthorn berry available in most health-food stores. Nutritional supplements include supplemental vitamin E in the diet, calcium, magnesium and folic acid. Home remedies include an unwrapped bar of soap under the bottom sheet of her bed placed in the area of the lower legs. Smaller hotel bars of soap are ideal because of their size, but the large ones work equally well. Still another possible solution is an over-the-counter topical liniment containing cooling menthol rubbed onto the lower legs and feet before going to sleep.