Generally, about 3 weeks after wound healing, scars will appear itchy, red, thickened and hyperplastic due to the different body types, scar sites and tissue damage, and will gradually fade later. For patients with red scars that are raised and itchy after wound healing, you can try the following ways to relieve them: 1. Topical medications: For patients with red scars that are raised and itchy at the beginning, you can use topical creams containing silicone and steroid substances under the guidance of a doctor to reduce the symptoms of local pigmentation and itching, but it is important to note that when using these topical creams, avoid skin breakouts and 2. Local pressure: In the early stage of red scars, the local blood supply can be reduced by using elastic fabric to apply pressure to the local area, which can prevent and reduce the effect of scar growth. This method is relatively simpler, cheaper and safer, and it is also a more common and effective treatment method in clinical practice. 3. Laser treatment: For patients with more serious red scars and itchy wounds, they can be treated by laser technology such as carbon dioxide laser, which can play the role of decomposing and repairing subcutaneous elastic fiber tissue, anti-inflammatory and regenerative cells. In addition to the above methods, for patients with large red scars that are raised and itchy and persistently do not subside, surgery can be adopted for treatment if necessary.