By THÉRÈSE MARGOLIS     “You can try diet, exercise, creams, massages and radiofrequency treatments, but the fact of the matter is that, until now, there has never been an effective, long-term way to get rid of cellulite,” explained Francisco Pérez Atamoros of Mexico City’s Tennyson Dermatology Clinic in Colonia Polanco. “And while some of these methods may help temporarily to reduce