Steroid injections are often recommended for people with rheumatoid arthritis and other types of inflammatory arthritis. They may also be recommended for osteoarthritis if your joints are very painful or if you need extra pain relief for a time. The injection can reduce inflammation, which in turn should reduce pain.
Steroid injections can’t treat the underlying cause of your condition, but they can treat the symptoms.
A number of different steroids are available for injection.
Some steroid injections start to relieve pain within hours and the effects should last about a week. Your doctor or other healthcare professional might call these short-acting soluble steroids. Soluble means that the drug dissolves quickly in your body and starts working quickly.
Other steroid injections take around a week to become effective but can ease your symptoms for two months or longer. These are described as less soluble because the drug takes longer to get into your system.
Due to of significant health risks, frequent injections of steroids are not recommended