Cortisone shots are a common treatment for managing shoulder pain and inflammation. These injections deliver corticosteroid medication directly into the affected area, which can include joints, tendons, or bursae. The primary goal is to reduce swelling and discomfort, helping to improve shoulder mobility and function. While offering significant relief, cortisone shots do not repair structural damage or cure chronic conditions; instead, they provide temporary symptom alleviation.
Immediate Post-Injection Sensations
Immediately following a shoulder cortisone injection, patients experience distinct sensations. The injection typically includes a local anesthetic, providing quick pain relief. This numbing effect is noticeable within minutes and can last from 20 minutes to over two hours.
As the local anesthetic begins to wear off, a dull ache or pressure is common at the injection site. This discomfort can sometimes be described as a temporary increase in pain. This initial soreness is mild and subsides within one to two days. This early sensation is distinct from the cortisone’s therapeutic effects, which take longer to manifest.
Timeline for Pain Relief
The cortisone’s anti-inflammatory effects do not begin immediately. While some report quick improvement due to the anesthetic, full pain relief usually takes time to develop. The corticosteroid typically starts working within 24 to 72 hours, with full benefits sometimes taking up to a week.
Pain relief duration from a shoulder cortisone shot varies significantly among individuals and depends on the specific condition being treated. Relief can last from several weeks to a few months, sometimes up to six months. These injections offer temporary relief and are often part of a broader treatment plan, which might include physical therapy.
Potential Reactions and What to Watch For
After a cortisone shot, some individuals may experience a temporary increase in pain and inflammation, known as a “cortisone flare” or “steroid flare.” This reaction occurs due to corticosteroid crystallization and manifests within hours to a day or two. While uncomfortable, this flare usually resolves within one to two days and can be managed with ice packs and rest.
Other less common reactions include temporary skin changes, such as lightening or dimpling at the injection site. Some patients might also experience temporary facial flushing or a feeling of warmth in the chest and face. For individuals with diabetes, blood sugar levels may temporarily increase following the injection.
While rare, be aware of signs of a serious reaction or infection. Symptoms such as increasing pain, severe swelling, warmth, redness, or pus at the injection site lasting more than 48 hours warrant immediate medical attention. Fever, chills, or any signs of systemic infection also require prompt contact with a healthcare provider.
Recommended Post-Injection Activities
Following a shoulder cortisone shot, rest the affected area for at least 24 to 48 hours. This initial rest period allows the medication to settle into the injection site and begin its anti-inflammatory action. During this time, avoid strenuous activities, heavy lifting, or repetitive motions that could strain the shoulder.
To manage any immediate discomfort or swelling, applying ice packs to the injection site can be beneficial. Avoid applying heat to the area for at least 24 to 48 hours. Gentle movement and light activities, such as walking, are generally permitted as long as they do not cause discomfort.
After the initial rest period, a gradual return to normal activities is typically advised, with guidance from a healthcare provider. Strenuous exercise, weightlifting, or high-impact sports involving the shoulder should be avoided for several days to a week. Physical therapy may be recommended to help improve joint motion, strengthen muscles, and facilitate recovery once the pain has subsided.