Recovery after scar revision injections is usually focused on caring for the treated skin and watching for changes, rather than healing from a surgical cut. The area may be tender, red, swollen, or bruised for a short time. Many people need several appointments before a raised scar changes. Your aftercare and timeline depend on the medicine injected, the scar’s location, and your clinician’s instructions.
What happens after scar revision injections?
Scar revision injections deliver medicine directly into scar tissue to improve its appearance or reduce discomfort. Corticosteroids are commonly used for raised scars, including hypertrophic scars and keloids. Other medicines, such as 5-fluorouracil (5-FU) or bleomycin, may also be injected, depending on the treatment plan.
According to the American Academy of Dermatology, injections can help reduce the size of raised scars and relieve itching or pain. The goal is to make the scar less noticeable or uncomfortable, not necessarily to remove it completely. Recovery after injections is generally different from recovery after scar removal surgery because injections do not usually require a surgical incision.
What is normal during the first few days?
The treated area may feel sore or tender after the injection. A small amount of bleeding, bruising, redness, or swelling can also occur. These reactions may settle without specific treatment, although the expected duration depends on the medicine used and the individual procedure.
According to DermNet New Zealand, early effects of steroid injections into the skin can include pain, bleeding, and bruising. Infection and delayed wound healing are also recognized complications. A brief local reaction does not necessarily mean the treatment has failed, but symptoms that worsen rather than improve should be discussed with the treating clinician.
Will the scar look different immediately?
The scar may initially look unchanged or appear temporarily red or swollen. This does not reliably predict the final result. With treatments such as corticosteroid injections, changes in thickness, firmness, itching, or discomfort may develop gradually as the medicine takes effect.
Do not judge the outcome based only on how the scar looks immediately after the appointment. Your clinician can assess its progress over time and determine whether another session or a different treatment is appropriate.
How should you care for the injection site at home?
Your treating clinician's instructions should guide your recovery because aftercare may differ according to the medication, the location of the scar, and whether another procedure was performed at the same visit.
Keep the treated area protected
Keep the area clean and follow any dressing instructions you receive. Avoid picking at the skin, squeezing the scar, or rubbing the injection site aggressively. Do not apply new creams, makeup, adhesive products, or other skin treatments directly over the puncture sites until your clinician confirms that it is appropriate.
Use a cold pack only when appropriate
If the injection site feels uncomfortable, ask your clinician whether a cold pack would help. The Royal Free London NHS Foundation Trust notes that an ice pack applied for about 10 minutes may reduce discomfort from steroid injections. Follow the instructions provided for your specific treatment, and do not apply ice directly to the skin.
When can you restart silicone gel or sheets?
Silicone gel and silicone sheets are sometimes recommended as part of treatment for raised scars. However, it is important to confirm when to restart them after an injection. The Royal Free London NHS Foundation Trust advises that silicone gel or sheets can usually be resumed two or three days after a steroid injection. Your clinician may recommend a different schedule depending on the condition of the skin and the treatment performed.
Can you return to normal activities?
Many injection appointments do not require the recovery period associated with surgery. However, the activities you can resume and the timing depend on the treated area and the medicine used. Follow any temporary restrictions provided by your clinician, particularly if the injection was combined with another procedure. Ask before resuming activities that rub, stretch, or put pressure on the treated skin.
How long does recovery take after scar injections?
There is no single recovery timeline for every scar injection. Temporary soreness, bruising, or swelling may occur around the appointment, while changes in the scar itself can take considerably longer to become noticeable. The duration depends on the medication, the characteristics of the scar, and the response to treatment.
According to Cleveland Clinic, recovery depends on the type of scar revision, and many people need multiple injections to achieve their treatment goals. An injection appointment is therefore not necessarily the end of the treatment process. Your follow-up visits allow the clinician to check the scar, review any side effects, and decide whether further treatment is needed.
Why might you need more than one injection?
Raised scars can contain dense tissue that does not change completely after a single treatment. A series of injections may be used to gradually soften or flatten the scar and relieve symptoms. For example, the Mayo Clinic explains that steroid injections for keloid scars may be given monthly for several months before the scar flattens.
Your schedule may be different because treatment frequency depends on the medication, the scar's response, and the clinician's assessment. Attend the recommended follow-up appointments even if the scar begins to look better, and do not arrange additional injections without professional guidance.
What side effects can occur during recovery?
In addition to temporary soreness or bruising, injections can cause changes in the skin around the treated scar. Some effects appear only after several weeks, so observing the area over time is important.
Possible side effects of steroid injections into scars include:
- Thinning of the skin or the tissue beneath it.
- A shallow indentation or small depression near the injection site.
- Light or dark patches where the medicine was injected.
- Small, visible blood vessels in the treated area.
- Persistent tenderness or other local irritation.
These effects do not occur in everyone. Some skin changes may improve, while others can last for a long time or become permanent. The possibility of these effects depends on the treatment and how it is administered. Contact your clinician if you notice a new depression, an unexpected color change, or another change that concerns you.
When should you contact your clinician after an injection?
Some tenderness or limited swelling may occur after treatment, but worsening symptoms deserve attention. Contact the treating clinic promptly if you experience any of the following:
- Increasing pain or swelling rather than gradual improvement.
- Spreading redness, unusual warmth, or drainage that may indicate infection.
- Blistering or bleeding that is persistent or concerning.
- A new, noticeable depression or unexpected change in skin color.
Seek urgent medical assessment if you develop rapidly worsening symptoms or feel significantly unwell along with changes at the injection site. Cleveland Clinic specifically advises contacting a healthcare professional if the scar or surrounding skin becomes infected, bleeds, blisters, or becomes severely swollen.
What can help you get the best result?
Follow the treatment plan agreed upon with your dermatologist or other qualified clinician. Report any previous reactions to scar treatments and mention any changes you notice between appointments. Do not increase the frequency of injections or combine treatments on your own, because the safest approach depends on the scar and the medication being used.
It is also helpful to have realistic expectations. Injections can reduce the thickness, discomfort, or visibility of some scars, but they cannot guarantee that a scar will disappear. Some scars improve gradually, some need several treatment sessions, and some may return after initially improving. Your clinician can explain the likely benefits, limitations, and alternatives for your particular treatment.