Boy I'm glad I read this. Hubby and I start tomorrow so now I know what to be prepared for. We both have horrible allergies and have sinus headaches a lot to begin with- I'm guessing on the Atkins you can't take psuedophed. I still need to do some reading tonight but hubby took the book to work with him. I take allegra for my allergies- only take when needed so it's not a daily thing.
I'll remember to drink lots of water.