Post-Operation Care for Perineural Injection.

The post-operative care information below is intended for patients who have undergone a perineural injection at Melbourne Radiology Clinic. A perineural injection, also called a selective nerve root block/injection (SNRB), is a pain-relieving treatment for nerve inflammation and injuries.

Fact Sheets | Post-Operation Care for Perineural Injection. 

Post-Operative Care for Perineural Injection Patients.


One of the many spine and back pain management injections Melbourne Radiology Clinic offers, a perineural block is an effective pain-relieving treatment that delivers anti-inflammatory medication to an injured or inflamed nerve. Patients who may need this treatment are those who experience pain from a pinched nerve (also called radicular pain) along the arms, neck, body or legs.


It is helpful to read up about the full perineural injection procedure and its risks to understand the postoperative recovery recommendations. The treatment is typically performed and completed under the guidance of a low-dose CT scan. Cortisone and local anaesthetic injections are also involved.

The number of perineural injections administered during the procedure depends on several factors, like how many nerves are inflamed, how severe their inflammation is, and how long the nerves have been inflamed or injured.

Following Your Procedure & Recovery

While the effects vary from patient to patient, many have reported experiencing minor discomfort in the back after the procedure. Most patients will be free of pain for a few hours thanks to the local anaesthetic, but their limbs may feel numb, heavy, weak or cold. This weakness in the arms or legs will usually last for approximately 20 to 40 minutes.

Patients will also be kept in the clinic for observation for about 30 minutes after the treatment. You will only be discharged once you are feeling well and can walk safely. We also recommend you bring a support person to drive you home afterwards.

You may gradually resume your normal activities a day after the treatment.

Post-Operative Care

When it comes to the post-operative care of perineural injection patients, it is essential to follow these recommendations and advice from our physicians to speed up the recovery process.

If pain returns within an hour of the procedure, there is a high chance that the perineural injection is ineffective for you. Our physicians may recommend other pain-relieving treatments depending on your case.

Should there be any bruising from the procedure or signs of inflammation such as swelling and redness, you can use ice to help reduce the pain. Place ice over the site for 15 to 20 minutes every hour, as long as you need it.


Please do not put ice directly on your skin, as this may lead to frostbite. Whether you are using a bag of crushed iced or a frozen bag of peas, you should always cover it with a towel before placing it over your injury.

You can take anti-inflammatory medication or other analgesic medication to ease the pain as well.

If the aspiration site feels itchy, you can take Benadryl or Diphenhydramine to help relieve the itch. If the itching persists, please contact us.


Previous Scans & Reports

Please bring to the clinic any prior scans (eg. X-rays, ultrasounds, MRI, CT) and reports as these will assist our radiologist in assessing your condition.

Any Referral Request Accepted

Please note that any referral for a scan is valid at Melbourne Radiology Clinic, even if it has been written or printed on a referral form or stationery supplied by another radiology provider.

If you have any further queries about your appointment please call Melbourne Radiology Clinic on (03) 9667 1667  – we are always only too happy to help.

Appointment Time

Whilst every effort is made to keep your appointment time, the special needs of complex cases, elderly and frail patients can cause unexpected delays. Your consideration and patience in these circumstances is appreciated.

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