Just Got a Lip Piercing, What Should I clean it with?

Alrighty, well, as stated, I just got a lip piercing. I am already nervous about piercings, since recently I arrived at a piercing pagoda only to have them get the gun jammed in my upper ear, the metal got stuck, and I recieved a horrible infection for a few weeks. Not pretty. But I got this one for free because I sold some artwork to them. Now, this was my first time there, and they told me to use Dial hand soap to clean it. Several other people told me the same. I look only though, and someone else said that soap and peroxide can actually DAMAGE the skin tissue, and to use Saline Solution. So what is better to use? Also, any tips on keeping it as clean as possible? And if it is the saline solution, can you use the same stuff as you would for contacts? Thanks for the patience.