Amy Stein has written guidelines for use of internal massages for men and women. She highly recommends that you seek out a pelvic floor physical therapist to go over the guidelines and what specifically would work best for your needs. This is to be done in conjunction with the expertise of a pelvic floor physical therapist.
We highly recommend the internal massage provided by Iliana Brockman at IC Relief. Take a look at the link below for the guide, and learn more about internal massage!