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    Did you mean Allergic Reactions?
    Glossary Allergic Reactions

    immune system overreacts to harmless substances, causing symptoms

    An allergic reaction, also known as a hypersensitivity reaction, occurs when the immune system mistakenly identifies a harmless substance (allergen) as a threat and overreacts to it. This can lead to symptoms ranging from mild, such as itching and sneezing, to severe, such as anaphylaxis, which can be life-threatening. Common allergens include pollen, pet dander, certain foods, and insect stings.

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    1. 55 cases of allergic reactions to hair dye: a descriptive, consumer complaint‐based study Contact Dermatitis · 2002 · 98 citations
    2. Contact dermatitis in reaction to 2% topical minoxidil solution Journal of The American Academy of Dermatology · 1991 · 23 citations
    3. Spectrum of Mucocutaneous Reactions to COVID-19 Vaccination: A Report from a Web-Based Study from India. PubMed · 2022 · 2 citations
    4. Hypersensitivity Reactions to Homemade Topical Preparations. PubMed · 2023
    5. Allergic contact dermatitis to natural products Journal of The American Academy of Dermatology · 2017
    6. DERMATOLOGICAL AND SYSTEMIC REACTIONS TO HAIR DYES: CURRENT EVIDENCE AND MANAGEMENT International Journal of Applied Pharmaceutics · 2026
    7. Psoriatic Alopecia/Alopecia Areata–Like Reactions Secondary to Anti–Tumor Necrosis Factor-α Therapy: A Novel Cause of Noncicatricial Alopecia The American Journal of Dermatopathology · 2011 · 72 citations
    8. Cutaneous adverse drug reaction associated with topical use of benzyl benzoate in a dog Ciência Rural · 2025
    9. <i>Malassezia</i> spp. overgrowth in allergic cats Veterinary dermatology · 2007 · 53 citations
    10. Harmless Herbs? A Review of the Recent Literature The American Journal of Medicine · 1998 · 581 citations
    11. Cutaneous complications of chemotherapeutic agents Journal of The American Academy of Dermatology · 1983 · 172 citations
    12. Current applications of high-frequency ultrasonography in dermatology Postępy Dermatologii i Alergologii · 2017 · 65 citations
    13. New Aspects of Langerhans' Cell Function International Journal of Dermatology · 1980 · 57 citations
    14. Mucocutaneous side effects of antineoplastic chemotherapy Expert opinion on drug safety · 2004 · 55 citations
    15. Adverse events related to platelet-rich plasma therapy and future issues to be resolved Regenerative Therapy · 2024 · 44 citations
    16. Efficacy and Skin Toxicity Management with Cetuximab in Metastatic Colorectal Cancer: Outcomes from an Oncologic/Dermatologic Cooperation Clinical colorectal cancer · 2008 · 42 citations
    17. Cyclophosphamide and rituximab in frequently relapsing/steroid-dependent nephrotic syndrome Pediatric Nephrology · 2015 · 39 citations
    18. Cosmetics for the elderly Clinics in dermatology · 2001 · 21 citations
    19. Dermatotoxicology of microneedles (MNs) in man Biomedical Microdevices · 2019 · 19 citations
    20. A review of environmental and health effects of synthetic cosmetics Frontiers in Environmental Science · 2024 · 16 citations
    21. The Role of Therapy in Impairing Quality of Life in Dermatological Patients: A Multinational Study Acta dermato-venereologica · 2018 · 15 citations
    22. Therapeutics of premature hair graying: A long journey ahead Journal of cosmetic dermatology · 2019 · 12 citations
    23. Controversy: Synthetic hairs and their role in hair restoration? International Journal of Trichology · 2010 · 10 citations
    24. Psychotropic Medications and the Skin Advances in Psychosomatic Medicine · 2015 · 8 citations
    25. Urticaria induced by laser epilation: A clinical and histopathological study with extended follow‐up in 36 patients Lasers in surgery and medicine · 2012 · 6 citations
    26. Ammonium bisulfite contact dermatitis: face eczema due to a bleaching ointment used during hair‐dying Contact dermatitis · 2006 · 5 citations
    27. Mesotherapy: myth and reality Expert Review of Dermatology · 2011 · 3 citations
    28. Pathology and pathogenesis of cutaneous lesions in beef cattle associated with buffalo fly infestation Frontiers in Veterinary Science · 2023 · 2 citations
    29. Hair Care Cosmetics Regulation in Different Countries – A Comparative Study Applied clinical research, clinical trials and regulatory affairs · 2019 · 2 citations
    30. Mechanisms of impairment in hair and scalp induced by hair dyeing and perming and potential interventions Frontiers in medicine · 2023 · 1 citations