You can use the disposable razors and get used to the itchy feeling. Also when you use the shaving gel and moisturize the skin later on, its not really that bad once you get used to it.
There are many possibilities to get yourself in order down there. One of the most painful things i can ever thing of is the brazilian waxing.
You can also try out the photepilation or lazor treatment. These two are very expensive, but worth the result!