Depressed scar - 压抑的疤痕

凹陷的疤痕 (Depressed scar) 位于皮肤表面下方,呈凹陷状。痤疮是凹陷疤痕的常见原因。

治疗
#Ice pick scar - TCA peeling (CROSS technique)
#Rolling scar - Laser resurfacing by Erbium laser or fractional laser
☆ 德国 Stiftung Warentest 2022 年的结果显示,消费者对 ModelDerm 的满意度仅略低于付费远程医疗咨询。
      References Methods for the Improvement of Acne Scars Used in Dermatology and Cosmetology: A Review 35628870 
      NIH
      Acne vulgaris 是一种慢性皮肤疾病,会导致多种类型的丘疹,如黑头和囊肿。若治疗不当,可能留下疤痕。本文综述了痤疮疤痕的不同类型及其改善方法。痤疮疤痕主要分为三类:icepick、rolling 和 boxcar scars,深度和外观各不相同。常用的有效治疗手段包括 lasers、radiofrequency、micro‑needling 和 chemical peels。
      Acne vulgaris is a chronic skin disease that, depending on its course, is characterized by the occurrence of various skin eruptions such as open and closed comedones, pustules, papules, and cysts. Incorrectly selected treatment or the presence of severe acne vulgaris can lead to the formation of atrophic scars. In this review, we summarize current knowledge on acne scars and methods for their improvement. There are three types of atrophic scars: icepick, rolling, and boxcar. They are of different depths and widths and have different cross-sections. Scars can combine to form clusters. If acne scars are located on the face, they can reduce the patient's quality of life, leading to isolation and depression. There are multiple effective modalities to treat acne scars. Ablative lasers, radiofrequency, micro-needling, and pilings with trichloroacetic acid have very good treatment results.
       A systematic review and meta-analysis on the effects of the ultra-pulse CO2 fractional laser in the treatment of depressed acne scars 35249351
      这项研究审查了6篇关于超脉冲CO2点阵激光治疗凹陷性痤疮疤痕效果的论文。结果表明,与其他方法相比,这种激光治疗更为有效,在改善率和皮肤光滑度方面取得了更好的结果。
      This study examined 6 papers about how well the ultra-pulse CO2 fractional laser treats depressed acne scars. The results showed that this laser treatment was more effective compared to other methods, leading to better outcomes in terms of improvement rates and how smooth patients' skin felt.