A small and very rare risk is that the injected joint becomes infected (1 in 15,000). Patients who experience a very painful, red, or swollen joint after injection should seek medical attention immediately. Thankfully, the most common cause of these symptoms is not a concerning infection but a reaction to the injected steroid (called steroid flare ) that occurs in 2-5% of patients. A steroid flare usually begins 6-12 hours after the injection and can last for 2-3 days. Regardless of the cause, it is important for patients with symptoms of infection to see a doctor because infections require immediate treatment.
Intramuscular (IM) Injection Procedure
It is optimal for an intramuscular injection to have in possession syringes without the tips (needles) already affixed to them. Preferably, the individual should have the hermetically sealed syringes (barrels) separate from the hermetically sealed needle tips. Although one can easily use syringes with the tips already affixed, it is slightly more complicated and adds an extra step or two into the process that otherwise would not be there. So, every individual should ensure to the best of their ability to have the syringe and needle tips separate. The following is a list of required items for intramuscular injections :