I haven't had this problem with my DD but DS used to wet himself through all the time, even through Huggies! I found a product in Woolworths in their nappy aisle that were like plain menstrual pads, you just pulled the strip off the back, stuck the sticky bit in the nappy and away you go! These worked well as it's some extra absorbency which you can add in the area most needed.....in the front for boys or in the back for girls. They weren't overly expensive either. Just a thought!