$300 in Botox treatments with Dr. Betty Bellman. After the treatment, the wrinkles slowly disappear over a 7-10 day period of time and the effect usually lasts approximately 4-6 months. Dr. Bellman is a board-certified Dermatologist and has been in private practice since 1995. She is a fellow of the American Academy of Dermatology and an active member of the American Medical Association, the Florida Medical Association, the Dade County Medical Association and the Florida Society of Dermatology.