I have a stye and itd about the third day i've used hot compressions. but it isn't getting bigger or looking like it'll rupture any time soon

Are you using hot: compresses for 10-15 mins. 4 times a day? (meaning reapplication of compresses). It shouldn't be scalding hot. This means reapplying it several, many times as compresses cool down in 2 minutes. Most people do not apply it or do it long enough, and often enough. If you have done so, then see your eye doctor. The consistency of the stye is like hard butter. You need to soften it to more like oil.