-Clean and disinfect the wound and surrounding skin until it is dry;
-Choose a suitable size acne patch on the acne, gently press the edge for 3-5 seconds to get better adhesion and stick to the skin;
-When the acne scars are full of exudates, the product swells, and the color changes from colorless and transparent to ivory and gel-like, which is a normal phenomenon, not a wound festering.