In case you ever wanted to give this a go. https://njbiz.com/fda-approves-gsks-voltaren-arthritis-pain-counter-use-us/
There was a study a while back about combining this with minoxidil for a synergistic effect.
This case in this late 2015 study quite impressed me / "Topical Diclofenac 3% Gel for Actinic Keratosis May Induce Terminal Hair in Male Androgenetic Alopecia: A Report of Three Cases"...