A keloid is a type of scar, that continues to grow and often itch, well after the underlying wound has healed.
Acne keloidalis is a type of scarring reaction most often seen on the nape of the neck or scalp. Acne keloidalis may develop after a ‘close shave’ where the hairs have a chance to ingrow and cause inflammation and then scar.
Here’s a good case report:
Acne keloidalis nuchae: clinical and dermoscopic features
, , , BMJ Case Reports 2017:published online 23 September 2017, doi:10.1136/bcr-2017-222222
Note: Content is Not intended as medical advice. Please consult your health care provider regarding your specific medical condition and questions.
Microneedling is a relatively new procedure designed to improve scars and other skin conditions with a minimum of down time.
Here is a link to a recent review of Microneedling:
Microneedling: A Review and Practical Guide.
Alster TS1, Graham PM.
The American Academy of Dermatology discusses the scarring of the skin and self esteem that are triggered by untreated acne.
This is a review of the literature of microneedling for improvement of scars from a variety of causes including acne. Microneedling is also known as Collagen induction therapy or (CIT) .
This new study presents the development and assessment of a tool aiming to assess the risk of atrophic acne scars.
J Eur Acad Dermatol Venereol. 2017 May 12. doi: 10.1111/jdv.14325. [Epub ahead of print]
Tan J1, Thiboutot D2, Gollnick H3, Kang S4, Layton A5, Leyden JJ6, Torres V7, Guillemot J8,9, Dréno B1