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Q: How often do doctors give cortisone injections to a patient? A: We try to limit the injection to one every three months for any single joint, but also we like to limit it to a total of six injections a year for the whole body. We know that the cortisone can sometimes weaken or suppress the immune system and, in diabetics, it raises blood sugar.
What to Expect. If your doctor has recommended cortisone injections, itâs likely for the purpose of reducing inflammation and relieving you of pain, usually in a joint. Cortisone injections are common and can be used to treat damage resulting from an injury or a disease. The shots can easily be administered in a doctorâs office and do not take long. Usually the cortisone is injected into a joint area, such as in the back, knee, hip, elbow, ankle, shoulder or wrist.