I would like to know if it's possible to improve the scar I have. The doctor used the trichophytic closure but seems it wasn't good.
There are many types of trichophytic closures and I don't know which type you had done. Many just don't work well. The ones that work well create a 4 mm shelf on the lower edge of the wound and is buried below the skin so that it then grows through the scar to the 4mm distance. You can have a scar revision with a properly done trychophytic closure or you can have scalp micropigmentation which will effectively hide the scar