How long does it take for a cortisone shot to start working?
Mia Kelly
Published Jan 09, 2026
A corticosteroid injection will usually take 3 to 7 days to begin to have a positive effect. It may take up to two weeks for the medicine to decrease the inflammation to a point where pain is improved. The full benefit of the corticosteroid may not be felt until 6 weeks after injection.
Do cortisone shots help immediately?
Cortisone begins to work as soon as it is injected. Nevertheless, the time frame until patients feel relief varies. Some people report immediate relief, while others report gradual pain reduction over a period of days or weeks.
What can I expect after a cortisone shot?
Cortisone shots commonly cause a temporary flare in pain and inflammation for up to 48 hours after the injection. After that, your pain and inflammation of the affected joint should decrease, and can last up to several months.
Do you need to rest after a cortisone injection?
Common side effects
You may also get some bruising where the injection was given. This should go away after a few days. It helps to rest the joint for 24 hours after the injection and avoid heavy exercise. It's safe to take everyday painkillers such as paracetamol or ibuprofen.
Why is my pain worse after a cortisone injection?
Some patients may experience a “cortisone flare” after their injection. This happens when the cortisone crystallizes and causes pain for a day or two. The pain may be worse than what you were living with before the shot. This is not a dangerous side effect, but it is uncomfortable.
26 related questions foundWhat happens if cortisone shot doesn't work?
If the first injection doesn't provide pain relief, your doctor may try a second injection four to six weeks later. If there's no improvement after the second injection, a third injection is not recommended.
What does it mean if a cortisone shot doesn't work?
If you haven't experienced pain relief, it's possible you haven't given the shot long enough to take effect. It could also mean the cortisone isn't relieving enough of the inflammation. After a few weeks without relief, call your healthcare provider to see what the next steps should be in your treatment plan.
What helps pain from a cortisone shot?
Anti-inflammatory medications: You may want to take an over-the-counter nonsteroidal anti-inflammatory medication (NSAIDs) like Advil (ibuprofen) or Aleve (naproxen). It will reduce the symptoms of your cortisone flare. Check with your healthcare provider to make sure it's safe for you to take these drugs.
How long does a cortisone shot stay in your system?
The effects of the injection usually last up to 2 months, but sometimes longer. Cortisone can reduce inflammation that damages joints.
What should you not take before a cortisone shot?
Non-steroidal anti-inflammatory medications (NSAIDs)
Ibuprofen medication like Advil, Nuprin, aspirin, or most pain relievers should not be used before the procedure. NSAIDs affect platelet behavior in the blood, which can affect how well it clots.
How long after a cortisone shot can I walk?
The injection consists of two medications: Cortisone (a steroid) and Marcaine (a numbing agent). It is recommended that you refrain from any high level activities using your knee for approximately 48 hours. Routine activities including walking are permitted.
How long does a steroid shot for inflammation last?
How Long Do Steroid Injections Last? Pain relief from a steroid shot is different for each person. It usually starts to work within 24 to 48 hours. The effect can last several weeks or more.
How often can you have a cortisone shot?
You can only have three cortisone injections in a lifetime
Generally, if the first injection doesn't work, the second and third probably won't either. Moreover, you should limit yourself to 2-3 injections in one area over 3-6 months. However, the rule that you can only have three in a lifetime is not valid.
How long does it take for a steroid shot to work for inflammation?
A corticosteroid injection will usually take 3 to 7 days to begin to have a positive effect. It may take up to two weeks for the medicine to decrease the inflammation to a point where pain is improved. The full benefit of the corticosteroid may not be felt until 6 weeks after injection.
Does cortisone help arthritis?
Cortisone shots can treat both inflammatory arthritis and osteoarthritis, but they may be more effective at treating inflammatory arthritis than osteoarthritis, according to the Mayo Clinic. “For osteoarthritis, sometimes people don't get relief, and it's hard to predict why,” says Dr.
Does cortisone cream reduce inflammation?
Topical corticosteroids are a type of steroid medicine applied directly to the skin to reduce inflammation and irritation. Topical corticosteroids are available in several different forms, including: creams. lotions.
What is the difference between a steroid shot and a cortisone shot?
Also called “corticosteroid,” “steroid shot,” and a human-made version of the hormone cortisol, these shots aren't pain relievers. Cortisone is a type of steroid, a drug that lowers inflammation, which is something that can lead to less pain.
Can I use a heating pad after a cortisone shot?
SHOULD I USE ICE OR HEAT AFTER CORTISONE INJECTION? If you're having pain from a cortisone flare during those first 24-48 hours, you can apply ice to the injection site. Do not use a heating pad.
Can you take ibuprofen with cortisone?
Interactions between your drugs
Using cortisone together with ibuprofen may increase the risk of side effects in the gastrointestinal tract such as inflammation, bleeding, ulceration, and rarely, perforation.
What is the next step if steroid injection does not work?
When one (or several) injections fail to fix your problem, often the next recommended step is surgery. The majority of the people we work with are seeking pain relief for their back, knee, neck or shoulder WITHOUT the need for surgery and other procedures.
Can you get two cortisone shots at the same time?
Q: Is it possible to inject more than one body part at a time? A: Yes, it's possible to inject different parts of the body at the same time, but we have to look at the overall amount of cortisone we're injecting.
Will a cortisone shot make me tired?
According to the National Institutes of Health, the side effects from cortisone shots include: Dizziness or headaches. Skin issues, including dryness, thinness, acne, dry skin, and red or purple blotches. Fatigue and trouble sleeping.
What causes a cortisone flare up?
During a “flare-up,” the cortisone crystallizes in the joint, causing a lot of pain. Icing the area after the injection can reduce the “flare-up” within a day or two. The cause of this flare up is through the corticosteroids that are injected into the joint during the procedure.
Does cortisone cause weight gain?
Steroids affect your metabolism and how your body deposits fat. This can increase your appetite, leading to weight gain, and in particular lead to extra deposits of fat in your abdomen.
Does cortisone keep you awake?
Hyperactivity. While prednisone is not a stimulant, it can make you feel more alert or jittery. “It doesn't really interrupt sleep, but some patients find it keeps them awake when they don't want to be,” Dr. Ford says.