How well does the barbell fit? Does it pop up from the top a lot when you sit down? Is it too long/short? Do your clothes rub it, do you pick the crusties, has it been caught on anything recently?

Welcome to the wide world of navel piercings. They take around a year to heal so you are just scratching the surface and they can be pissy and fussy the whole duration of healing.

Also make sure you are using the proper proportions of salt to water. 1/4 teaspoon to 8oz.

The length seems to be ok Thanks for the advice

Chamomile compresses, buy some chamomile tea bags (should be found with all other hot drinks at the supermarket). Boil some water and pour over tea bag into a mug, let it brew for a few minutes, then take the bag, squeeze some of the excess tea out and hold onto your navel for about 5 mins.

-Aside-
*I then recommend putting a small teaspoon of sugar into the tea and drinking it, helps you sleep and I find helps keep my stomach happy (I get random stomach pains with an upset stomach, it occurs less frequently when I drink chamomile tea every night.) The sugar isn't necessary, but it's not that pleasant a drink, the sugar makes it a little more palatable, it DOES aid sleep though *

As for how well they work, it seemed to help my angry daith piercing a little, but who knows. If you have problems sleeping then keep the tea bags and it wont be wasted money, not that it's expensive anyways