Patient: It has been 3 months since I had the skin expander surgery to remove the scars. I have been applying medicine and scar patches every day. Now the scar is very red, hard and a little dark. I had a photorejuvenation. Is this scar a hyperplasia? What should I do about it? Is there anything I can do to improve it? If I want to improve it with surgery, how long after can I do it? Does photorejuvenation work for scars? Jia Hongli: You can do 32P dressing, which is to put a piece of consideration paper with medicine, no pain, better effect, after laser freezing will affect its treatment effect. Both the first and second hospitals of Hebei Medical University have such treatment options. Keloid can not easily do surgery, surgery to remove scars if it is keloid range will expand.