Keloid scars are common in young people and are found in the anterior chest area, back of the shoulders, face and neck, earlobes, and areas of joint movement such as the knee and elbow joints. Some studies have found that some keloid patients have autosomal dominant inheritance. If one parent has a keloid, the chances of the child having the disease are higher than if there is no family history. Therefore, it is recommended that those with a family history avoid skin damage as much as possible.
Common treatments include local injections of tretinoin (every 2 weeks), Depo-Provera (every 1 month), etc.
Finally, let’s look at the comprehensive treatment, the specific treatment method: first give liquid nitrogen freezing treatment, freezing 10-30 s each time, and apply a certain pressure, do 2-3 times freezing and thawing, 10-15 min after routine disinfection, give tretinoin 1 ml mixed with 2% lidocaine 1 ml and inject locally until the lesion is pale and elevated; those with large scar tissue can do multi-point injection, each tretinoin amount not The amount of trimethoprim should not exceed 1 ml, once every 2 weeks, and 2 times in a row for a course of treatment.
After 15 minutes of liquid nitrogen freezing and routine local disinfection, trimethoprim 1 ml mixed with 2% lidocaine 1 ml was injected locally.
The treatment effect of liquid nitrogen freezing plus local injection of tretinoin is significantly better than that of local injection or liquid nitrogen freezing alone, and is worthy of clinical promotion.