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    Glossary Gram-negative folliculitis

    bacterial infection of hair follicles resistant to certain antibiotics

    Gram-negative folliculitis is a bacterial infection of the hair follicles caused by Gram-negative bacteria, which are a group of bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. This condition often occurs as a complication in individuals who have been on long-term antibiotic therapy for acne, leading to an overgrowth of these resistant bacteria. Symptoms include pustules and inflammation around hair follicles, typically on the face and neck.

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    1. Action of isotretinoin in acne rosacea and gram-negative folliculitis Journal of The American Academy of Dermatology · 1982 · 175 citations
    2. Isotretinoin treatment of acne and related disorders: An update Journal of The American Academy of Dermatology · 1983 · 126 citations
    3. Acneiform Dermatoses Dermatology · 1998 · 45 citations
    4. Top Ten List of Clinical Pearls in the Treatment of Acne Vulgaris Dermatologic Clinics · 2016 · 15 citations
    5. Bacteria Display Differential Growth and Adhesion Characteristics on Human Hair Shafts Frontiers in Microbiology · 2018 · 33 citations
    6. Scalp Bacterial Profile and Antibiotics Susceptibility Pattern in Patients With Primary Cicatricial Alopecia Annals of Dermatology · 2025
    7. Diagnostic delay, comorbid hidradenitis suppurativa and the prognostic value of bacterial culture in folliculitis decalvans: A cohort study JDDG Journal der Deutschen Dermatologischen Gesellschaft · 2023 · 7 citations
    8. Lichen simplex chronicus positive for C5b-9/MAC, IgD and C3c as a result of recurrent bacterial hair follicular unit infection Our Dermatology Online · 2020
    9. Immediate Post-Operative Folliculitis: A Foreign Body Reaction, Not an Infection International Society of Hair Restoration Surgery · 2025
    10. Ayurvedic Management of Folliculitis Decalvans AYUSHDHARA · 2025
    11. Hidradenitis Suppurativa/Acne Inversa/Dissecting Terminal Hair Folliculitis Springer eBooks · 2019 · 1 citations
    12. use of dermoscope to differentiate Pityrosporum folliculitis and Acne vulgaris 2023
    13. A study on dermatoses of pregnancy Our Dermatology Online · 2013 · 13 citations
    14. Dermatologic Manifestations of Human Immunodeficiency Virus Infection Mayo Clinic Proceedings · 1992 · 53 citations
    15. Skin Conditions in Figure Skaters, Ice-Hockey Players and Speed Skaters Sports Medicine · 2011 · 48 citations
    16. Cicatricial (Scarring) Alopecias American Journal of Clinical Dermatology · 2012 · 44 citations
    17. Synthetic hair reactions and treatment of complications: Case reports Journal of Cosmetic Dermatology · 2020 · 4 citations
    18. Refractory folliculitis decalvans treated with adalimumab: A case series of 23 patients Journal of the American Academy of Dermatology · 2022 · 24 citations
    19. Management of folliculitis decalvans: The EADV task force on hair diseases position statement Journal of the European Academy of Dermatology and Venereology · 2025 · 5 citations
    20. Diagnoseverzögerung, komorbide Hidradenitis suppurativa und die prognostische Bedeutung bakterieller Kulturen bei Folliculitis decalvans: eine Kohortenstudie JDDG Journal der Deutschen Dermatologischen Gesellschaft · 2023
    21. Effective treatment of folliculitis decalvans using selected antimicrobial agents International journal of trichology · 2010 · 33 citations
    22. Investigating Different Deep learning Models for Classification of Folliculitis 2023
    23. Folliculotropic non-alopecic secondary syphilis Journal of the American Academy of Dermatology · 2011 · 6 citations
    24. Festschrift in honor of the 65th birthday of Dr. Howard I. Maibach American Journal of Contact Dermatitis · 1995
    25. Kerion Celsi caused by Microsporum gypseum in a Chinese child, a case report Medicine · 2022 · 2 citations
    26. Evaluation of the Effectiveness of Ciprofloxacin in Comparison to Clindamycin Solutions on Acne Vulgaris Iraqi postgraduate medical journal · 2024
    27. Retinoids - new uses and new synthetic agents Inpharma (Balgowlah) · 1988
    28. Female-patterned alopecia in teenage brothers with unusual histologic features Journal of Cutaneous Pathology · 2006 · 6 citations
    29. Formulation and evaluation of polyherbal hair gel formulation Journal of pharmacognosy and phytochemistry · 2022
    30. Effect of physical stimuli on hair follicle deposition of clobetasol-loaded Lipid Nanocarriers Scientific Reports · 2020 · 52 citations