What to Expect
You may feel a warmth or tingling sensation in your arm or face following the injection. Your pain may lessen or disappear right away or within the next 10 to 20 minutes. The injection site may be painful and may become bruised. When the anesthetic begins to affect the nerve bundle, you may feel a lump in your throat or experience hoarseness. You may also develop nasal congestion, especially on the side of the injection. You may even develop a headache. Side effects should dissipate after 4 to 6 hours.
Contraindications of Stellate Ganglion Block
While this procedure is considered safe for most patients, you should not have this done if you have very high blood pressure or if you take certain medications, such as blood thinners. Additionally, you will need to wait if you have an infection, a cold, the flu, or a fever.