Default HELP! Boring Bug Mealing on My Mahogany Furniture

My wife and I have mahogany bedroom furniture that is getting eaten. Piles of "saw dust" are every where from some type of boring bug/beetle.
It became known to us last year with a few pieces of furniture. We had a "professional" treat them.
Well-The bugs are back now in all of our furniture.
HELP!!
I have heard of two products called BoraCare & Timbor for treatmenmt of these pests. Can anyone fill me in on these products?
Many Thanks!!
Bill

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Door Furniture|Door Handles