135 citations
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August 1994 in “Clinical Endocrinology” Most women with hirsutism or androgenic alopecia had polycystic ovaries, especially if they had irregular periods.
January 2004 in “Side effects of drugs annual” Certain skin drugs and topical agents, including some natural extracts and fragrances, can cause allergic reactions. Some hair dyes and extensions, as well as minoxidil, a hair growth treatment, can also cause allergies. Botulinum toxin A can effectively reduce sweat but may have temporary side effects.
4 citations
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January 2024 in “Allergy” Everyone has an immune response to PPD, but reactions differ, causing tolerance, mild inflammation, or allergy.
September 2017 in “Pediatric Dermatology” The letter agrees that adults can get contact alopecia, which improves with allergen avoidance, and stresses early diagnosis to prevent permanent hair loss.
January 2026 in “JCEM Case Reports” A woman with hypothyroidism developed an allergy to IV levothyroxine after being resistant to oral forms.