A nerve block is a shot that stops pain signals from reaching the brain. Doctors use a tiny amount of medicine to numb a specific nerve or group of nerves. It works fast, lasts for a few hours to a few weeks, and can be an option when pills aren’t enough.
There are several kinds of nerve blocks, each meant for a different part of the body. The most common are peripheral blocks, which target nerves near the skin; epidural blocks, used for back pain or surgery; and sympathetic blocks, which affect the nerve chain that controls organ function. Knowing the type helps you understand what to expect.
One popular block is the interscalene block, which numbs the shoulder and upper arm. Another is the femoral nerve block, often used after knee surgery to keep the leg pain‑free. For childbirth, many hospitals offer an epidural that eases labor pain while you stay alert.
Doctors also use a popliteal block for foot and ankle procedures, and a stellate ganglion block for certain chronic pain conditions in the neck and face. Each injection is guided by feel, landmarks, or imaging like ultrasound to place the medicine right where it’s needed.
Before the shot, tell your doctor about any allergies, medications, or bleeding problems. Most nerve blocks use lidocaine or bupivacaine, which are safe when dosed correctly. You might feel a brief pinch, then a warm or tingly feeling as the medicine spreads.
After the block, the area will feel numb. Avoid walking or using the numbed part until the feeling returns – you don’t want to hurt yourself by accident. Some people get a mild headache or muscle weakness; these usually go away in a day or two.
If you notice swelling, rash, or trouble breathing, call a doctor right away. Those signs are rare but need fast attention. Most patients go home the same day and can start normal activities once the numbness fades.
Overall, nerve blocks are a useful tool for pain control. They let you avoid strong opioids and often speed up recovery after surgery. Talk with your healthcare provider to see if a nerve block fits your situation and get clear instructions on after‑care.
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