Ask the Doctor Dr. Betti Hertzberg Ressler is a Board Certified Pediatrician on staff at Miami Children's Hospital. Dr. Hertzberg developed the toilet training video "Let's Go Potty." She is the co-author of "The Doctor's Book of Home Remedies for Children." • Read past questions Name: Email: My question for Dr. Hertzberg is: Not all questions can be answered. Dr. Betti will select up to two questions a week. Dr. Betti can't make specific diagnosis via e-mail. You should always consult the advice of your physician to discuss specific symptoms and conditions.