I have read many people complain of bumps after having Restylane or Juvaderm injections and others who love them. Are the bumps caused by user error or is that a possible side effect ? I am researching having wrinkle fillers. Although I am realistic and know I won't have the face I did 30 years ago, I also can't see doing this and finding my wrinkles less noticeable, but that the bumps have taken their place. Also, about how many cc's does it take on the average person to do around the nose, mouth and upper lip area?