Hello, don't be anxious yet, it's better to relax. At present, it may be a urinary tract infection. I'm not familiar with nifurtel tablets, but the inquiry instructions are used to treat vulvar and vaginal infections and leucorrhea caused by bacteria, trichomonads, molds and candida. It's not very good for your symptoms, so the unsatisfactory effect after taking the medicine can also be explained. It is recommended to take the second-generation cephalosporin treatment, such as cefuroxime tablet 0.25 bid or cefaclor capsule 0.25 tid, whether it will affect pregnancy, please consult the relevant gynecologist. We also recommend taking the second-generation cephalosporin orally for pregnant women with urinary tract infection in clinic. But there is still a risk of teratogenesis. The course of treatment is 3-5 days, during which you should drink plenty of water, avoid spicy food, alcohol and tobacco, and then check the urine routine. If the symptoms disappear and the urine routine returns to normal, you can stop taking the medicine. If the urine routine is still abnormal after the course of treatment, please check whether there is infection in gynecology, whether the urine retention method is correct (very important), check the B-ultrasound of urinary system and residual urine, and check urine for acid-fast bacilli. I wish you a speedy recovery!