Scar remove especially for acne, postoperation, trauma, infection etc. Function mechanism: The depressed scars mainly caused by acne , surgery, trauma, infection, ... the destroied dermis restore to normal style. Applications: Remove acne scars, postoperation scars, trauma scars, infection etc. Contains: ... drop.4. Every 24 hours change fresh dressing for a wound, for 7-10days total. 5. Apply the scar ...