I know nothing about eyebrow piercings, but I have a ton of ear piercings, navel, and nipples. My experience is that curved pieces of jewelry going through "flat" parts of the body rub more, and therefore take longer to heal. My holes with straight barbells through them healed much faster than those that are curved.
I got an orbital ear piercing about a year ago, and it still gets a little crusty. I will rinse it in the shower, but other than that I don't worry about it. It has gotten a lot better, and I expect it will be fully healed soon. My nipple piercings (also curved rings, through a straight piece of skin) still get very crusty and white fluid is present. Occasionally they bleed, but only when they get bumped or irritated. They are only three months old though, so this is typical. I have never had a piercing stay that way for a year and a half, so I might be worried. Contact your piercer maybe? Or try a straight barbell if you have a curved one in?