Hi,
I was diagnosed with a kidney infection at out of hours on Sunday night, given Cefalexin. It seemed to work wonders and I felt a lot better yesterday. Overnight, I developed sharp stabbing pains in my urethra and pelvic region and this morning it feels like I’m peeing razor blades again. There was a small amount of blood on the toilet paper too. Should I contact my GP again or is this expected and the antibiotics need more time to work?