Nerve Block Injection in Seomyeon, Busan

What is a nerve block?

A nerve block (신경 차단술) is an injection that temporarily switches off pain signals from a particular nerve. In spine care, common examples are selective nerve root blocks for sciatica or arm pain, and medial branch blocks that test whether the small facet joints of the spine are the source of back or neck pain. Outside the spine, blocks target nerves around the shoulder, hip, head and other areas. Nerve blocks are very widely used in Korean pain and spine clinics.

Who is it for?

People with radiating nerve pain from the spine
Suspected facet joint pain, before considering radiofrequency ablation
Some chronic shoulder, headache or post-surgical pain conditions
Patients for whom it is important to pinpoint the pain source before surgery

A diagnostic block that gives strong short-term relief helps confirm the target; little or no relief suggests the pain is coming from elsewhere.

What happens at the clinic

Assessment: examination and review of MRI or other imaging.
Positioning and cleaning: the skin is sterilised; local anesthetic numbs the skin.
Guidance: ultrasound or fluoroscopy shows needle placement; contrast may be used.
Injection: a small volume of anesthetic, with or without steroid, is placed beside the nerve.
Pain diary: for diagnostic blocks, you record pain levels for the next hours.

Treatment outlook

Local anesthetic effects last hours; steroid can extend benefit for weeks in some conditions. Blocks are most useful when combined with exercise and other treatment, or as a step to decide on a longer-lasting procedure such as radiofrequency ablation. Repeated blocks that give only brief relief without functional progress should prompt a review of the plan.

Risks and side effects

Common effects include temporary numbness or weakness, soreness at the injection site and, with steroid, flushing or raised blood sugar. Rare risks include infection, bleeding, nerve injury and, near the spine, unintended spread of medication. Image guidance reduces these risks.

Choosing a clinic for nerve blocks in Seomyeon

Choose a neurosurgeon, anesthesiology pain specialist or rehabilitation physician experienced in guided injections.
Ask whether your block is diagnostic, therapeutic or both, and what result would change the plan.
Confirm ultrasound or fluoroscopic guidance is used.
Ask how many blocks they would perform before considering other options.
Ask which blocks are insurance-covered and which are not.

Local note

Nerve blocks are quick outpatient procedures, and many clinics around Seomyeon perform them the same day as consultation. The district is the Line 1 and Line 2 transfer point, which helps for repeat visits.

How long does a nerve block last?

The anesthetic effect lasts hours. If steroid is added, relief may continue for days to weeks. Some people gain longer benefit because reduced pain allows them to move and exercise normally.

Is a nerve block the same as an epidural?

They are related. An epidural spreads medicine in the epidural space, while a selective nerve block targets one specific nerve. Both are used for spinal nerve pain.

Can I drive after a nerve block?

It depends on the area treated. Leg or arm numbness can affect driving, so plan for someone else to drive, or use public transport, on the day of the procedure.

Is a nerve block covered by insurance in Korea?

Many nerve blocks are covered by National Health Insurance for enrolled patients when medically indicated. Coverage depends on the type and frequency, so ask the clinic beforehand.

What happens if a nerve block does not help?

A lack of relief is useful information: it may mean the pain comes from a different structure. Your doctor may then re-examine, order further tests or try a different target.

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