Hope I can shed some light on this as I'm Type One, and have ten piercings and my sister is a body piercer so can hopefully share some advice; my first thing is make sure you've eaten beforehand and your sugars are in range as adrenaline can do strange things. The second is that where you are going, make sure they pierce with titanium as its a lot safer and you're less likely to be allergic to it whereas with gold and silver they are a mix of metals and can cause reactions.
As for keeping it clean afterwards, clean it at least once a day. I recommend using a pre mixed solution over mixing your own as it is difficult to get the perfect mix of salt to water and too much salt can burn it but not enough wont keep it clean. Be aware there is such a thing as over cleaning a piercing, so don't fuss it every few hours because that can cause irritation.
Of course until its healed try not to touch it, especially with unwashed hands - if you have any worries you can always go back to your piercer, a doctor would make you take it out most of the time so be careful. Of course I'm not a professional but this si the advice I've been given by professionals and have found that it has worked, never had any real trouble with any of my piercings. Hope this helps