What to Expect After a Trigger Point Injection

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What to Expect After a Trigger Point Injection

What to Expect After a Trigger Point Injection

By Unity Pain Management

If you’ve been dealing with tight, painful “knots” in your muscles—especially in your neck, shoulders, or back—your provider may recommend a trigger point injection to bring relief. But what happens after the shot? Will the pain go away right away? Are there side effects? What should you watch for?

At Unity Pain Management, we want you to feel informed and prepared. Here’s what to expect after your trigger point injection.

What Is a Trigger Point Injection?

A trigger point is a small, tight area in a muscle that feels like a knot. These points can cause:

Local pain
Muscle tension
Pain that radiates to other areas (like headaches or back pain)

A trigger point injection (TPI) uses a small needle to inject a numbing medicine—sometimes with a steroid—directly into the knot to relax the muscle and stop the pain.

What to Expect Immediately After the Injection

1. Quick Numbing Relief
You may feel relief within minutes due to the local anesthetic (like lidocaine). Some patients say it feels “looser” or “lighter” right away.

2. Temporary Soreness or Pressure
It’s normal to feel mild soreness or bruising at the injection site for 1–2 days. You may feel like you worked out that area of the body.

3. Muscle Twitch or Sensation
Some people notice a muscle twitch or “release” during or after the injection—that’s a sign the trigger point is relaxing.

When Will You Feel Better?

Short-term relief may happen within a few hours.
Longer-term relief (especially if a steroid was used) may take 1–3 days to fully kick in.
Relief can last weeks to months, depending on the cause of your pain and your follow-up care.

Tips for the First 24–48 Hours

✅ Rest the area but don’t completely avoid movement.
✅ Apply ice to reduce swelling if needed (15–20 minutes at a time).
✅ Avoid heavy lifting or intense workouts for 24–48 hours.
✅ Stay hydrated to support muscle recovery.
✅ Follow your care plan (like physical therapy, stretching, or posture adjustments).

Possible Side Effects (Usually Mild)

Soreness at the injection site
Mild bruising
Dizziness or lightheadedness (rare and short-lived)
Temporary flare-up of pain (resolves in 24–48 hrs)

Call us if you experience:

Fever, chills, or signs of infection
Severe swelling or redness
Numbness that lasts more than a few hours
Trouble breathing (very rare)

Do You Need More Than One?

Some patients need a series of injections depending on how their muscles respond. Others get great relief from just one.

We’ll assess your progress and decide what’s best for you.

Final Thoughts

Trigger point injections are a powerful, low-risk option for muscle-based pain. At Unity Pain Management, we use them to help patients move better, sleep better, and enjoy life again—without the need for surgery or long-term medications.

📞 Call (350) 216-5774 or
💻 Book your next visit at UnityPain.com

Let us help you break the pain cycle—starting at the source.