Does it need to be injected with kenalog? Is this always the case or can F5U work alone? Do any Dr's here have a success rate with F5U? Collagen won't stop growing and cheeks are pushing up against my eyes, it's so very distressing. 2vials in my 20s and the collagen keeps coming and coming every month. It has also been placed incorrectly which makes it look twice as bad! I am 6 stone and 5'7 and have the face of a fat person 22 months since my last shot!