TLDR  Er:YAG laser therapy is ineffective for treating facial eruptive vellus hair cysts due to early recurrence and side effects.   
  Er:YAG laser therapy was evaluated for treating eruptive vellus hair cysts (EVHCs) in a 30-year-old female with a long history of facial EVHCs. While the initial results showed an even skin surface with no visible cysts, early recurrence occurred after reepithelialization. The study concluded that although Er:YAG laser therapy might be suitable for distinct EVHC lesions, it was ineffective for facial EVHCs due to the risk of atrophy or scarring and the inability to deeply enucleate densely disseminated cysts. The treatment of EVHCs remains challenging due to frequent recurrences and potential side effects.
                     17 citations
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  December 1994   in “International Journal of Dermatology”    Recognizing both trichostasis spinulosa and eruptive vellus hair cysts together is crucial for accurate diagnosis and treatment.  
               26 citations
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  May 1988   in “Pediatric dermatology”    Eruptive vellus hair cysts can run in families.  
               47 citations
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  March 1987   in “The Journal of dermatologic surgery and oncology”    Carbon dioxide laser treatment effectively removed facial hair cysts without scarring or them coming back.  
    
  
        
                 13 citations
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  December 2005   in “Dermatologic surgery”    Er:YAG laser therapy is not effective for widespread facial eruptive vellus hair cysts due to recurrence and side effects.  
      4 citations
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  July 2014   in “International Journal of Dermatology”
           4 citations
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  July 2014   in “International Journal of Dermatology”    Twins had rare skin cysts likely due to genetics.  
      41 citations
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  October 2011   in “American journal of clinical dermatology”
           41 citations
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  October 2011   in “American journal of clinical dermatology”    Eruptive vellus hair cysts are a cosmetic skin condition, more common in young adults, with few effective treatments.  
               January 2016   in “Indian Dermatology Online Journal”    A rare skin condition called Eruptive Vellus Hair Cyst can cause itchy papules on the face.  
      1 citations
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  July 2015   in “European Journal of Dermatology”
           1 citations
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  July 2015   in “European Journal of Dermatology”    CO₂ laser treatment is fast and effective for some benign skin tumors with minimal side effects.