How long after starting antibiotics does uti pain go away

Infections affecting the bladder, urethra, ureters, or kidneys, urinary tract infections (UTIs) are quite common.  UTIs can be viral or fungal but are predominately bacterial in nature.  Because of their anatomy, women are at a higher risk for developing UTIs than men.  Anyone that suspects they may have a UTI, is likely wondering how long the infection will last.  To provide insight into the length of infection, we will discuss some of the general UTI symptoms and the treatments available in this discussion.

UTI Symptoms

As previously mentioned, UTIs affect the bladder, kidneys, urethra, and ureters.  The symptoms associated with the UTI vary based on the area infected.  Early signs and symptoms, when the infection is impacting the bladder, generally involve discomfort, pain, or a burning sensation when urinating.  Often this discomfort is accompanied by the frequent or urgent need to urinate.  Urine may appear cloudy, have blood present, or have a strong odor.

Should a UTI become more advanced and spread to the kidneys, symptoms may be more severe.  A high grade fever (above 101°F), chills, fatigue, and pain in the back, side, or groin may develop.  Severe abdominal pain, nausea, and vomiting may also present.

Treatment and Duration of UTI

A healthcare provider will first perform tests to identify the type of UTI the patient is believed to have.  This typically will involve taking urine samples to look for bacteria, red blood cells, white blood cells, and to test chemicals in the urine (such as nitrites).  In other cases, blood tests, CT scans, kidney scans, or ultrasounds may be ordered to diagnose the infection.

For mild lower urinary tract infections (bladder infection), most patients will be prescribed an antibiotic to prevent the UTI from spreading to their kidneys.  Women generally take antibiotics for 3 days whereas men take them for 7-14 days or more.  In some cases, a single dose of antibiotic is sufficient.  Should the patient be pregnant, have diabetes, or a mild kidney infection, antibiotics are taken for 7 to 14 days.  Lower urinary tract infection symptoms typically begin to clear up within 24 hours of starting antibiotics.  Regardless of the type of infection, it is important that the patient finish the antibiotic for the full course of treatment even if symptoms begin to clear up.  Failure to finish the antibiotics could lead to the infection recurring and it becoming resistant to antibiotics.

Should a urinary tract infection become severe and spread to the upper urinary tract (kidneys), treatment also typically involves antibiotics.  Young patients that are otherwise healthy, can be treated as outpatients by receiving IV antibiotics and fluids followed by a 10 to 14 day course of oral antibiotics.  If the patient is very ill, dehydrated, or cannot hold food down, they may be admitted to the hospital for fluids and antibiotics until well enough to switch to oral medications.  Acute, complicated UTIs could necessitate treatment for several weeks.  In general, upper urinary tract infection symptoms take longer to resolve.  Patients will frequently see improvement in the symptoms within 24 hours of beginning treatment but often will take longer until symptoms are fully resolved.

More on Urinary Tract Infections : How to know if you have a urinary tract infection?

Most people with a kidney infection can be treated at home with a course of antibiotics, and paracetamol if needed.

See a GP if you feel feverish and have pain in your tummy, lower back or genitals that will not go away.

You should also see a GP if you have symptoms of a UTI that have not improved after a few days, or if you have blood in your pee.

If you think your child has a UTI, even if it's just cystitis, make sure you see a GP or go to an out-of-hours emergency service.

Medicine

Antibiotics

If you're being treated at home, you'll usually be prescribed a course of antibiotic tablets or capsules that lasts between 7 and 14 days.

Usually, you'll start to feel better quite soon after treatment starts. Most people who are diagnosed and treated promptly with antibiotics feel completely better after about 2 weeks.

People who are older or have underlying conditions may take longer to recover.

If your symptoms show no sign of improvement 24 hours after treatment starts, contact a GP for advice.

Painkillers

Taking a painkiller such as paracetamol should help relieve symptoms of pain and a high temperature.

However, anti-inflammatory painkillers (NSAIDs) such as ibuprofen are not normally recommended for a kidney infection – they may increase the risk of further kidney problems so should not be taken unless advised by a doctor. A doctor may only prescribe these in certain circumstances.

Things you can try yourself

If you have a kidney infection, try not to "hover" over the toilet seat when you go to the loo because it can result in your bladder not being fully emptied.

It's also important for most people with a kidney infection to drink plenty of fluids (water is best) because this will help to flush out the bacteria from your kidneys. Aim to drink enough so that you're frequently passing pale-coloured urine.

If you have kidney failure, get advice from your doctor on how much to drink.

Make sure you get plenty of rest. A kidney infection can be physically draining, even if you're normally healthy and strong. It may take up to 2 weeks before you're fit enough to return to work.

Treatment at hospital

The GP may refer you to hospital if you have an underlying problem that makes you vulnerable to kidney infections.

It's standard practice to further investigate all men with a kidney infection because the condition is much rarer in men. Women do not tend to be referred unless they've had 2 or more kidney infections.

Most children with a kidney infection will be treated in hospital.

Hospital treatment may also be needed if:

  • you're severely dehydrated
  • you're unable to swallow or keep down any fluids or medicines
  • you have additional symptoms that suggest you may have blood poisoning, such as a rapid heartbeat and losing consciousness
  • you're pregnant and you also have a high temperature
  • you're particularly frail and your general health is poor
  • your symptoms fail to improve within 24 hours of starting treatment with antibiotics
  • you have a weakened immune system
  • you have something inside your urinary tract, such as a kidney stone or a urinary catheter
  • you have diabetes
  • you're over the age of 65
  • you have an underlying condition that affects the way your kidneys work, such as polycystic kidney disease or chronic kidney disease

If you're admitted to hospital with a kidney infection, you'll probably be attached to a drip so you can be given fluids to help keep you hydrated. Antibiotics can also be given through the drip.

You'll have regular blood and urine tests to monitor your health and how effectively the antibiotics are fighting off the infection.

Most people respond well to treatment. As long as there are no complications, you should typically be well enough to leave hospital in 3 to 7 days.

Treatment will usually switch to tablets or capsules after you stop receiving antibiotics through a drip.

You may need further investigations if you get more than one kidney infection. A GP or hospital specialist would arrange these tests for you.

Page last reviewed: 06 January 2021
Next review due: 06 January 2024

Should a UTI still hurt after 3 days of antibiotics?

You should also call your doctor if, after taking medicine for 3 days, you still have a burning feeling when you urinate. If you are pregnant, you should also call your doctor if you have any contractions.

How long does it take to get relief from antibiotics for UTI?

Most UTIs require 3 to 7 days of treatment. Within the first 1 to 2 days of starting your antibiotics, you'll likely notice your UTI symptoms begin to fade away. If your UTI is more severe or you've had symptoms for a while before starting antibiotics, it might take a few more days to notice improvement.

Why does my UTI still hurts after antibiotics?

There are three primary reasons that this may happen: an antibiotic-resistant strain of bacteria is causing your UTI. another type of bacteria, fungi, or virus may be causing your infection. your UTI may be another condition that has UTI-like symptoms.