This is the first time I've heard about taking prednisolone after fat grafts; that makes so much sense. Thanks for sharing this knowledge! The problem I had with mine was that the fat on the left side of my forehead disappeared, leaving a weird looking indentation, while the right side was fine, and the nerve on the left side (supraorbital nerve) might have been damaged, according to what one doctor told me. Needless to say, I'm not going back to that same clinic.
I just checked out Machimpyo and their website appears to have an English version! I will try to get in touch with them and see what happens. Thanks for the info!
FYI my IG is @itzwhuteva. I tried to message you there first actually but it must have gotten stuck in your message request inbox, so I deleted it and tried contacting you here instead xD