Nitrofurantoin
"This is the second time I am taking Nitrofurantoin within a 2 months period. I waited 6 days for the infection to improve by its own but it didn't. The side effects are fast! dizziness, slight headache and nausea (salivating all the time), stomach ache, reflux after eating and sleepiness. However the symptoms of discomfort while urinating also improved really fast. My only advice would be as well to drink lots of water with lime juice (that helped me to control the salivating-nauseous situation) and eat a lot of fresh yogurt to keep under control bowel flora."