Hello, I am sorry you had "collagen" injected into your cheeks and that now you are having problems. First, I highly doubt that you had collagen injected into your cheeks. Even the longest lasting "pure" collagen injection would only last two years at maximum. If you really think that you had collaged injected into your cheeks, please consider hyaluronidase injections. However, iIt is far more likely that you had silicone or biopolymer injected into your cheeks. Unfortunately, silicone or biopolymer are PERMANENT fillers. That means that these injections will NEVER go away without surgical intervention. Permanent fillers do NOT dissolve with steroids, hyaluronidase, antibiotics, or radio frequency (RF). I would suggest you have surgical removal of your cheek injections. These injections can be removed through a facelift incision (in front of your ear) and an intra-oral (inside your mouth). I specialize in lip biopolymer and silicone removal and subsequent reconstruction with fat grafting and/or implants. I am the lead investigator and founder of the Silicone Removal Institute. Since removing facial silicone is a big procedure, please seek an experienced, board certified plastic surgeon with significant experience in removing silicone. Do your research. Make sure they have performed many facial silicone removal surgeries and have the before and after pictures to prove it. Carefully examine their before and after pictures and check their reviews on RealSelf. If you cannot find an experienced, silicone removal surgeon in your neighborhood, consider traveling out of state if you must. Sincerely, Dr. Katzen. (“Verified” Plastic Surgeon, Certified by the American Board of Plastic Surgery, Fellow of the International Society of Aesthetic Plastic Surgery, American College of Surgery, and International College of Surgery and member of the American Society of Plastic Surgery, American Academy of Cosmetic Surgery and RealSelf Hall of Fame.)