These are not related and there is no contraindication to getting Botox and filler after a breast augmentation procedure. The chance that one of the injections could lead to an infection is very small and we don´t know if this could potentially affect your implants.
First of all you say "I am extremely happy with the result" so I don´t understand why would you consider a rhinoplasty (metacrilatos are permanent fillers). However rhinoplasty after a filler is often more difficult than a primary rhinoplasty for the difficult to remove the filler.
In my experience the best overall results are obtained with hyaluronic acid (HA) fillers (Juvederm). I don´t offer to my patients permanent techniques for lip augmentation.
Is important a medical work-up for this problem ,since the surgery was a year ago.I think that no relation exist between the face lift and the health problems of your mother. Es importante una evaluación médica de este problema, ya que la cirugía fue hace un año.Yo pienso que no existe relación entre el face lift y los problemas de salud de su madre.
Ultra sound and CT scan of the area could help to a correct diagnostic.From the photograph provided it looks that you have a mucus retention cyst ;a single needle aspiration could confirm this diagnostic.