As noted, there is a difference between a nympho driven by self-esteem issues and a highly sex-crazed woman. I've dated both with different practices and outcomes.
First the sex-crazed. The most sex-crazed relationship I was in was when I was younger and had both the time and the inclination to do it as much as possible, always. Initially, we would go at it at least three times a night, at least once in the morning, and more if we could find the time or energy. This generally led to much soreness/abrasion, which in turn led to forced periods of abstinence to heal. In turn, the abstinence led to massive horniness. And so the cycle went on. During this time, my girlfriend dicovered that she was multiorgasmic. After a few weeks of this, we realized there was a different approach that led to more consistent sex, less abrasion, and as many, if not more orgasms. Basically, we mixed in more oral and manual play, along with more lubricant. We got very good at getting her to have massive, extended orgasms - we also figured out that the right combination multiorgasmic oral and fucking sessions put her into a total stupor (she would say "you fucked my brains completely out of me again"), which she found to be very satiating for extended period of time.
As far as the "real" nympho goes, well, there is really only one possible outcome until the nympho deals with whatever psychological issues are driving her to that condition. We tried to have a relationship (in the broader sense), realized it was impossible, and then maintained a sexually fun, fuck-buddy relationship. It was quite common for her to fuck four or five different guys over the course of any given weekend. The downside to this (beyond STD concerns) was that she was psychologically incapable of a healthier relationship and kept undermining the ones she did get into. She is now in an "open" relationship with a sexually impotent man who is her father's age (not a comment on his sexual drive, but rather on what she may have been looking for).