Board Thread:New on Terraria Wiki/@comment-24184101-20131118212750

So I'm having trouble with the corruption spreading. Using tedit I've morphed some of the Corruption into normal biomes however, they keep changing back even though there's no corruption connected to the area specifically it's the desert biome. I also can't remove the purple ice blocks, tedit simply won't morph it into regular ice. I also was wondering if you kill one of the mech bosses, is it possible to revert the rate at which it spreads back to normal? I read this on another terraria wiki. Also is there a tshock command or extension to completely cleanse the corruption and the hallow? The items I can get from both worlds I can just hack in using tedit. 