postpartum excessive saliva

I started having severe excessive saliva at 8 weeks pregnant. My doctor told me there  was no treatment other than spitting it out. Which I've done into a plastic bottle ever since. Except, I'm 3 months postpartum and my saliva is over producing as much as the first day it started. 
I'm scheduled to see an ENT next week, but has anyone else struggled with this after giving birth??