[The question of Beasthood earned a rather nonchalant shrug as the first answer.] Essentially, yes. The more corrupt your blood, the more likely you are to achieve Beasthood. The mutations aren't pleasant from my understanding.

When it comes to corruption, you can see specialists to alleviate it. The process is similar to blood-letting, though I believe there's more to it than that. [He wouldn't know. He's yet to quite reach that level of corruption.]

But once you've reached Beasthood, the only release, and recovery, is through death.

Which is, as you guessed, hardly permanent here. If you think death might be something of a frequent occurrence for you, it's better to be familiar with the beach. It's where you'll start again.