. If the burn is not serious, it is not easy to leave a scar if there is only a slight burn without blisters, but if the burn is serious, it is inevitable to leave a scar. It's usually obvious. Most people expect a medicine or a method to make the scar disappear when it occurs, but at present, no medicine or surgery can completely remove the scar, which can only improve the scar, reduce the area and make the scar inconspicuous. 1. External use: The public expects a magical scar-removing ointment, which can make scars disappear without a trace. However, because scar is a normal connective tissue used to heal wounds, it will inevitably form and exist at any wound. External ointment is applied to the scar, and its purpose is limited to moisturizing, softening, diminishing inflammation and diluting pigment, thus improving and beautifying the appearance of scar, but it can't really remove scar. Scar ointment can be divided into ordinary moisturizing ointment, anti-inflammatory ointment containing steroids, moisturizing and softening ointment containing silica gel, and melanin-removing ointment used to dilute pigmentation. As for the fruit acid used for beauty, since it can improve skin quality. In fact, fruit acid, especially at high concentration (10%), has the characteristics of stimulating dermal collagen proliferation and restoring skin elasticity, thus flattening the uneven scars of acne, but it will only have an effect after several months of continuous use, and it is limited to shallow scars and has no effect on deep scars. (Recommended drug: Kangruibao gel) 2. Laser treatment: The laser used for scar treatment can be divided into two types: growth scar and depression scar. Growing scars are large, convex and often reddish. For the growing scar, heme laser with a wavelength of 585nm or colored light with a wavelength of about 585nm can be used to shrink the microfilament blood vessels in the scar. Repeated treatment can shrink the scar and reduce the red mark. The sunken scar is caused by the reduction and disorder of collagen and elastin under the skin, and the concave-convex hole on the face is the best representative. In the past, the improvement methods were inseparable from peeling and fruit acid treatment, and the effect was often unsatisfactory. How to remove scald scar? At present, the latest method is to stimulate the regeneration and rearrangement of collagen under dermis by non-invasive long-wave 1320nm laser or colored light, so as to fade the concave-convex surface of scar.