Okay, I just realized something. In Teen Wolf, whenever someone gets The Bite, their chronic medical conditions are usually healed. Scott doesn't have asthma, Erica doesn't have epilepsy, I'm assuming Hayden didn't need her kidney medication after becoming a chimera, or at least a proper werewolf.

So, why didn't Liam's IED go away? You know, his anger issues. It's a mental disease, yes, but I don't see how that should make a difference. I guess the Bite can't fix mental illnesses? I don't know, that just popped into my head today and it's now bothering me.