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.
June 2026 in “British Journal of Dermatology” Photodynamic therapy for actinic keratosis can cause permanent hair loss.
5 citations
,
January 2017 in “Skin appendage disorders” A man developed an allergic skin reaction from a therapy cap used for hair loss treatment.
52 citations
,
February 2009 in “Journal of the American Academy of Dermatology” A 93-year-old woman developed a rare scalp condition after therapy, which improved with steroids, not antibiotics.
9 citations
,
March 2017 in “JAAD Case Reports” A woman's scalp condition improved with specific ointment after a hair piece caused skin issues.
September 2022 in “Dermatology and therapy” Contact immunotherapy might help treat various skin conditions, but more research is needed to confirm its safety and effectiveness.
15 citations
,
March 2008 in “The Journal of Dermatology” Topical squaric acid dibutylester worsened discoid lupus erythematosus in a patient.
15 citations
,
July 2002 in “Australasian Journal of Dermatology” Two plywood factory workers developed contact dermatitis from phenol-formaldehyde resin, a known allergen.
July 2025 in “Journal of Investigative Dermatology” Monocyte-derived dendritic cells play a key role in UVB-induced skin sensitivity and inflammation.
15 citations
,
March 1996 in “Journal of The American Academy of Dermatology” The book "Practical Contact Dermatitis" is useful for dermatologists but could be more user-friendly.
4 citations
,
January 2024 in “Allergy” Everyone has an immune response to PPD, but reactions differ, causing tolerance, mild inflammation, or allergy.
22 citations
,
September 1986 in “Journal of Investigative Dermatology” Low-dose topical alpha-terthienyl may be a safer option for treating skin conditions with light therapy.
June 2023 in “Italian journal of dermatology and venereology” Trichoscopy effectively diagnoses allergic scalp contact dermatitis.
July 2025 in “Dermatology Practical & Conceptual” Topical eyedrops may cause eyelash whitening and skin lightening around the eyes.
18 citations
,
April 2010 in “Archives of Dermatology” Psoriasis or contact dermatitis can override alopecia areata, allowing hair growth.
July 2026 in “International Journal of Applied Pharmaceutics” Hair dyes, especially with PPD, can cause skin and rare systemic reactions, and safer alternatives are needed.
65 citations
,
November 2008 in “Pediatric Dermatology” Phototherapy is effective and well-tolerated for treating childhood psoriasis and pityriasis lichenoides chronica.
34 citations
,
August 2002 in “British Journal of Dermatology” ALA-PDT is effective and safe for chronic X-ray dermatitis, providing complete or partial remission.
60 citations
,
September 2001 in “British journal of dermatology/British journal of dermatology, Supplement” Topical contact sensitizers can treat certain skin conditions by changing the immune response.
2 citations
,
October 1974 in “Archives of Dermatology” The woman's skin condition persisted for 20 years despite treatments.
April 2021 in “Journal of Investigative Dermatology” People with atopic dermatitis have more CD4+ T cells that respond to a certain bacterial lipid, which may play a role in the skin condition's inflammation.
10 citations
,
January 2010 in “Acta dermato-venereologica” Light therapy can effectively treat vitiligo and hair loss caused by a specific medication.
Hair care products often cause allergic skin reactions, so testing and new treatments are important.
January 1985 in “Clinical research” Topical alpha-terthienyl with UVA may safely treat psoriasis without cancer risk.
March 2026 in “Indian Dermatology Online Journal” Hair dye ingredient PPD can cause severe allergic reactions, including facial swelling.
May 2023 in “Australasian Journal of Dermatology” Various substances, including cosmetic sponges, vein glue, chai tea, skincare products, and medicaments, can cause allergic contact dermatitis, and healthcare workers often react to N95 masks.
9 citations
,
July 2017 in “Dermatologic Therapy” Two elderly men developed scalp inflammation after using a gel for skin lesions, which healed with treatment except for some permanent hair loss.
July 2022 in “Dermatology Reports” A rare scalp condition called Erosive pustular dermatosis is hard to diagnose and treat.
January 2023 in “Bio web of conferences/BIO web of conferences” The document concludes that specific dermoscopic features can help diagnose different facial red skin conditions.
April 2016 in “Journal of The American Academy of Dermatology” Daylight photodynamic therapy is effective and well-tolerated for treating actinic keratoses with minimal side effects.