Overview of Keloid Treatment Options
There are a number of treatment options available to remove or improve the appearance of keloid scars. When deciding which treatment option (or combination of) is best for a patient, doctors will look at the following factors:3
- Keloid location
- Size
- Depth
- Patient age
In addition, the doctor will review what treatments have already been attempted.3
First-line treatments include:17
- Cryotherapy
- Silicone sheeting
- Compression therapy
- Corticosteroid injections (10-40 mg/mL directly into the keloid)
If these are unsuccessful, second-line treatment options may be attempted. Injections are always into the keloid, and many of these second-line treatments are actually a combination of therapies:3,17
- 5-Fluorouracil (50 mg/mL)
- Bleomycin tattooing (1.5 IU/mL)
- Compression therapy
- Cryotherapy followed by corticosteroid injections
- Interferon alpha-2b (1.5 million IU) after surgery
- Onion extract gels
- Pulsed dye laser (alone or with other therapies)
- Radiation (alone or after surgery)
- Retinoic acid
- Surgery followed by corticosteroid injections and silicone sheeting
- Surgery followed by verapamil (2.5 mg/mL) injections and silicone sheeting
- Tacrolimus
For small keloids, steroid injections directly into the scar are believed to be most effective; for larger keloids a combination of surgery and other treatment is typically recommended.11,18
Rate of Occurrence or Recurrence |
% Patients with + Response |
Possible Adverse Side Effects |
||
Surgery |
50-100%17 |
100% |
Recurrence rates much lower for AKN(i). |
High recurrence rate and may come back worse.2 |
Compression therapy |
90-100%17 |
Especially effective on earlobe keloids.2 |
Daily treatment over many months.2 |
|
Cryotherapy(ii) |
0%3 |
Painful; best used for smaller scars only.2 |
Hypopigmentation with darker skin, skin atrophy, infection.2-3,17 |
|
with steroid injections |
0%17 |
84%17 |
Reduced side effects when combined.17 |
|
LASER THERAPIES | ||||
Argon laser |
45-93%3 |
Hypopigmentation with darker skin.26 |
||
Carbon dioxide (CO2) laser |
39-92%3 |
Hypopigmentation with darker skin.26 |
||
with steroid injections |
25-74%3 |
|||
with interferon alpha-2b |
34%3 |
|||
Nd YAG laser |
53-100%3 |
Hypopigmentation with darker skin.26 |
||
Pulse dye laser (PDL) 585 |
57-83%8 |
Hypopigmentation with darker skin.26 |
||
with steroids and 5-FU |
70%17 |
|||
TOPICAL CREAMS AND DRESSINGS | ||||
Silicone gel sheets |
50-100%17 |
|||
after surgery |
25-36%17 |
0-75%17 |
||
Topical retinoic acid |
20-100%3 |
Rash, skin atrophy, and photosensitivity.3 |
||
Topical imiquimod after surgery |
||||
INJECTIONS | ||||
Corticosteroid injections (10-40 mg/mL) |
9-50%17 |
Injections are painful.17 |
Skin atrophy, hypo-pigmentation, sores.17 |
|
with surgery |
20% |
92% |
As above. |
|
with surgery & silicone sheets |
12.5%17 |
88%17 |
As above. |
|
with surgery, PDL, & 5-fluorouracil |
70%17 |
Same as individual treatment modes but reduced.5 |
||
with 5-fluorouracil |
15%21 |
92% |
Same as individual treatment modes but reduced.5 |
|
with cryotherapy |
84%17 |
Hypopigmentation, but other side effects reduced.17 |
||
with interferon alpha-2b |
100%3 |
|||
5-Fluorouracil (5-FU) intralesional injections |
47%3 |
88%17 |
More expensive than steroids; painful.21 |
|
after surgery |
19%21 |
As above. |
||
Interferon alpha-2b injections(iv) |
Costly; intense pain at injection site.2 |
|||
after surgery (1.5 million IU) |
8-19%17 |
30-50%17 |
As above. |
|
after CO2 laser ablation |
33%3 |
As above. |
||
Verapamil injections |
0%19 |
100%19 |
Less painful than steroids.2 |
Fewer side effects than steroid shots.2 |
after surgery and with silicone sheets |
36%3 |
90%17 |
||
with surgery & pressure earrings |
0%3 |
52%3 |
||
Bleomycin tattooing (1.5 IU/mL) |
15%3 |
88-92%17 |
Risk of side effects † with systemic doses of 200+.17 |
Hair loss, hyper-pigmentation, pulmonary fibrosis.17 |
RADIATION THERAPY(iii) | ||||
Monotherapy |
10-94%8 |
Skin color changes, rash,†risk of cancer, stunted growth in children.17 |
||
with surgery |
9-72%21 |
72-92%8 |
As above. |
|
High-dose-rate brachytherapy |
13.6%16 |
As above. |
||
after surgery |
88-94%16 |
As above. |
||
Irridium 192 interstitial irradiation after surgery |
21%16 |
As above. |
||
|