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How to heal hypertrophic scars
Apply a silicone gel or mask.
Silicone gel masks are a common, effective treatment for hypertrophic scars. You can buy sheeting masks or gel over-the-counter at a drug store or online, or you can purchase it from your dermatologist.
Carefully follow the instructions on the packaging, or those provided by your doctor. To use the mask, apply it over your scar and make sure it stays in place.