looking at your title 'eradicating sex desire' I sense the kind of fanaticism that I was prey to for most of my adult life. I'm sorry to be so blunt, but it's a bit like saying 'I want to eradicate the desire for food'. Sex desire is a natural aspect of having this human body, with it's cocktail of neurochemicals that are going to get released every time you look at an attractive member of the opposite sex, so get used to it. I'm not saying 'go ahead and indulge', no; on the contrary, I encourage you to practice as much restraint as possible. Without restraint, we just end up behaving like animals. I just mean, this wish you have sounds like it is born of impatience, and unwillingness to bear with something that is going to be an irritating problem for (probably) quite some time. It sounds like you just want to get it out of the way quickly, so you won't have to bear it. But if you have strong sexual feelings, well welcome to the human race. Laypeople have sexual feelings, monks have sexual feelings...we all have them. It's how you deal with them
when they arise, that is important, not that you will just be able to 'eradicate' them, as though they were some pests like cockroaches in your kitchen, that you could just spray with insecticide and be done with (I'm not advocating killing, that was just a figure of speech - I don't intentionally kill insects). You will need to just bear with it like the rest of us, there's no quick fix. I recommend going on with meditation, practicing virtue (five precepts), eight when you can, and studying the Buddha's wise words, practicing the entire Noble Eightfold Path, and over a long period of time too. Doing that, sex desire will eventually be overcome, as you reach higher levels of realization. But it won't happen with an act of will alone. I know because I have tried to do this heaps of time, and have failed to 'eradicate' the desire on a deeper level. Darn it, no matter how many bouts of 'pure celibacy' I do, the desire still lurks deep down, it's not gone yet... Be willing to bear with the sexual feelings, but learn skills and strategies for dealing with them.
Feelings are just feelings, they can be witnessed, you can feel them without fanning their flames, you can skillfully direct your mind elsewhere when they do, there are lots
of ways to deal with them that don't involve simply acting them out. But to just somehow eradicate them, so you can just get them out of the way for good - you will need to reach the second level of enlightenment even just to reduce
them, and really I would first work on reaching the first
level. One step at time, friend!
On another note, you might consider that, sex in the context of a committed, respectful and loving relationship,
might be another way to 'deal' with it. I have only little experience with this, but I can tell you, it's completely different to sex just for the sake of physical pleasure alone. It's not nearly as unwholesome. If engaged in with loving-kindness, it can actually be a beautiful thing...and the feelings of warmth and love can actually become 'the main thing', they actually 'calm down' the more fiery, impulsive aspect of desire. In my limited experience, anyway.