I used my pump for 30 minutes or so as often as I could...The general jest is to get blood flowing to your penis to help keep it healthy.
How long ago was your surgery?
Age 54 - 5'11" 205lbs
Overall Heath Condition - Good
PSA - July 2007 & Jan 2008 -> 1.3
Biopsy - 03/04/08 -> Gleason 6
06/25/08 - Da Vinci robotic laparoscopy
05/14/09 - 4th Quarter PSA -> less then .01
Surgeon - Keith A. Waguespack, M.D.