I had Metacril filler injected in my chin and nasal fold areas approx. 6-7 years ago. It looked great and the Dr. told me it was semi-permanent, but over the past 2 years it has started to greatly diminish. I had this done in Europe and nobody in this country seems to be familiar with this filler. I would like to have a skin tightening laser treatment done (such as Titan or Refirme). Can I safely undergo one of these procedures and can I be treated with other types of injectables in the same area or would there be any type of reaction.