Urinary tract infection with hot water to smoke the perineum have no effect at all, urinary tract infection refers to the pathogenic bacteria have entered the urinary system caused by frequent urination, urinary urgency, urinary pain. The most effective way is to use antibiotics, according to the results of urine bacterial culture plus drug sensitivity test, choose reasonable antibiotics is the most effective, with hot water fumigation is ineffective, and may even aggravate the inflammation of retrograde infection, aggravate the degree of infection, and even pyelonephritis caused by systemic fever, so the urinary tract infection with hot water fumigation effect is not good.