The pillow crease on my right side is starting to become more permanent. At this stage are fillers my only option? (photo)

The crease is only on my right side, it does diminish throughout the day, however it is increasingly becoming more permanent and deeper. I would like to do the right things now to stop the process, or reverse the damage. Is Botox an option, surgery, or do I have to resign myself to the fact of always needing fillers?

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