Depressed scar - 壓抑的疤痕

壓抑的疤痕 (Depressed scar) 位於皮膚表面下方,呈凹陷外觀。痤瘡是凹陷疤痕的常見原因。

治療
#Ice pick scar - TCA peeling (CROSS technique)
#Rolling scar - Laser resurfacing by Erbium laser or fractional laser
☆ 德國 Stiftung Warentest 2022 年的結果顯示,消費者對 ModelDerm 的滿意度僅略低於付費遠距醫療諮詢。
      References Methods for the Improvement of Acne Scars Used in Dermatology and Cosmetology: A Review 35628870 
      NIH
      Acne vulgaris 是一種常見的皮膚疾病,會導致各種類型的丘疹,如黑頭和囊腫。如果治療不當,可能會留下疤痕。本文探討了不同類型的痤瘡疤痕以及改善它們的方法。主要分為三種:icepick、rolling 和 boxcar 疤痕,其深度和外觀各不相同。有許多有效的治療方法,包括 lasers、radiofrequency、micro‑needling 以及 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
      本研究回顧了6篇探討超脈衝CO2點陣雷射治療凹陷性痤瘡疤痕效果的文獻。結果顯示,與其他治療方式相比,該雷射更具效力,能在改善率及皮膚平滑度方面取得更佳成果。
      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.