How Peripheral Nerve Blocks Work

At San Antonio Pain Consultants, our team uses peripheral nerve blocks as a targeted approach to interrupt pain signals traveling from a specific area of the body to the brain. A nerve block involves placing medication near a nerve or group of nerves to temporarily stop those signals, which helps reduce or eliminate pain in the affected region. By preventing the transmission of pain impulses, patients often experience significant relief while underlying conditions are evaluated or treated.

Peripheral nerves carry sensory information, including pain signals, between the body and the central nervous system. When these nerves are irritated or damaged, they can produce symptoms like tingling, burning, or sharp pain, which nerve blocks are designed to address.

A peripheral nerve block works by:

• Delivering anesthetic medication directly near the nerve

• Interrupting pain signal transmission to the brain

• Reducing inflammation around irritated nerves

• Providing temporary or extended pain relief, depending on the medication used

At San Antonio Pain Consultants, nerve blocks are often part of a comprehensive pain management plan designed to improve comfort, restore function, and help patients return to daily activities with less discomfort.

Peripheral nerve blocks are used at San Antonio Pain Consultants to treat a wide range of pain conditions, particularly those involving nerve irritation or inflammation. Because peripheral neuropathy and nerve injuries can cause symptoms like numbness, tingling, burning pain, and weakness, targeted treatments such as nerve blocks can help reduce discomfort and improve quality of life.

Nerve blocks are often recommended when conservative treatments like medications or physical therapy have not provided adequate relief. They can be used both diagnostically to identify the source of pain and therapeutically to manage symptoms.

Conditions commonly treated include:

• Peripheral neuropathy and nerve pain

• Chronic regional pain syndromes

• Post-surgical or injury-related nerve pain

• Arthritis-related nerve irritation

• Back, neck, or limb pain linked to nerve inflammation

• Headaches or certain nerve compression syndromes

At San Antonio Pain Consultants, our specialists develop personalized treatment plans to address both symptoms and underlying causes of nerve pain. By targeting specific nerves, peripheral nerve blocks help reduce pain while allowing patients to participate more comfortably in rehabilitation and daily activities.

At San Antonio Pain Consultants, a peripheral nerve block is performed as a minimally invasive procedure designed to deliver medication precisely near the affected nerve. The goal is to numb the area and reduce pain without the need for major surgery. The procedure is typically done in a clinical setting and usually takes a short amount of time.

A nerve block involves injecting medication—often a local anesthetic and sometimes an anti-inflammatory agent—near the targeted nerve to stop pain signals from traveling to the brain.

Steps typically include:

• Cleaning and preparing the injection site

• Using imaging guidance or anatomical landmarks to locate the nerve

• Injecting anesthetic medication near the nerve

• Monitoring the patient briefly after the procedure

Patients may feel temporary numbness or warmth in the treated area as the medication takes effect. Because the procedure is minimally invasive, most patients can return home the same day with post-procedure instructions. At San Antonio Pain Consultants, our team prioritizes patient comfort and precision to ensure safe, effective pain relief.

The duration of relief from a peripheral nerve block can vary depending on the type of medication used, the specific nerve treated, and the individual patient’s condition. At San Antonio Pain Consultants, some nerve blocks provide short-term relief lasting hours, while others may offer relief for days, weeks, or longer when additional medications are included.

Local anesthetic nerve blocks typically last from a few hours to longer periods, depending on the anesthetic type and dosage.

Factors that affect duration include:

• Type of anesthetic or medication used

• Whether anti-inflammatory medication is included

• Severity and cause of the underlying condition

• Individual response to treatment

• Whether repeat or continuous blocks are used

Some patients experience immediate relief that gradually wears off, while others may notice longer-term improvement as inflammation decreases. At San Antonio Pain Consultants, nerve blocks are often combined with other treatments to provide sustained pain control and support long-term recovery goals. Our team will discuss what duration you can expect based on your specific condition and treatment plan.

Peripheral nerve blocks work by interrupting the transmission of pain signals along specific nerves. This helps reduce inflammation and discomfort in the affected area, allowing patients to experience relief and improved function. At San Antonio Pain Consultants, Dr. Darius Zagunis, M.D., carefully evaluates each patient to determine if this treatment is appropriate based on their condition and pain levels.

This approach can be used for both short-term and long-term pain management depending on individual needs. With a focus on personalized care, the team at San Antonio Pain Consultants works closely with patients to create tailored treatment plans that support better pain control and improved quality of life. For more information, contact us or book an appointment online. We are located at 3903 Wiseman Blvd, Ste 117, San Antonio, TX 78251. We serve patients from San Antonio TX, Leon Valley TX, Shavano Park TX, Balcones Heights TX, Fair Oaks TX, Fair Oaks Ranch TX, Castroville TX, Helotes TX, Alamo Ranch TX, and surrounding areas.