Hi MPG,
Welcome to the forums !
Your dr can prescribe some meds to help you.
there are a few meds that help, keep reading the forums or do a search about it.
What I do as preventive is I take ALA-Alpha lipoic acid, it's over the counter & somewhat inexpensive.
don't sit in one position for too long
also, an aspirine 81mg can help with the blood circulation, I take one daily.