Mine spreads with injury or stress. These new sites tend to wax and wane and they seem almost to dilute the total amount of pain I experience in the original site.

Grape seed extract seems to work quite well for controlling or preventing spread. I take a large dose every three days and increase the frequency after injuries.

Over the years only one spread site has ever disappeared completely but most seem to get better over time. I'm not nearly so fearful of the sporead as I am that symptoms might intensify. Each of us is different though and I'd not encourage anyone to take the spread lightly.