Macrobid
"I'm on my 4th pill of Macrobid...ok the reviews here will scare the crap out of you but let me give you a few tips. I made sure my dr prescribed me Zofran so when I took the first pill ( be sure to take it with FOOD) I took a Zofran . I did feel nauseous for about 30 mins and felt a little woozy but it didn't last long ...took the 2nd pill with FOOD and got a headache but nothing horrible and had no other side effects ...
By the time I took the third pill I had no side effects but I still took pill with food and zofran . 

Don't let the reviews scare you . I feel so much better after 4 pills as far as my infection and the more the pills get in your system the less severe the side effects should be.

Zofran and food and you'll be good to go"