Show me your before & after using 5fu or similar

Having a hard time finding a dermatologist that will use or has experience using 5fu or similar on keloids. I have 3 quarter sized ones on my shoulders and now a small one just starting to start on my chest… i 27F have been getting steroid injections on and off for years. Ill do like 4 sessions in a two spacing them out every two weeks to the point where they are flat. Then months to a year later im right back to where they started… rn ive dont two sessions and they are currently flat but i just feel so discouraged… yes they are flat now but they just look very red and angry, and i just loose hope each time they come back. I need something better