First of all, you should drink a lot of water. After pregnancy, patients with urethritis should drink a lot of water and urinate frequently. After drinking a lot of water, the urinary system will produce a lot of urine, which will flush the pelvis, ureter, bladder, and urethra, and help reduce the symptoms of urinary tract irritation in patients. The patient should go to the urology department to check the urine routine to determine whether the white blood cells in the urine are positive. If WBC is negative or only (1+) is positive, patients only need to drink a lot of water, and some patients can recover from urethritis. If the leukocyte is positive (2+) or even (3+), the patient can be treated with antibiotics such as penicillin, amoxicillin or cephalosporin, and should take the medicine according to the obstetrician's advice.