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The researchers reported that different allergens showed unique patterns based on season, gender, and age among patients with allergic skin rashes, with notable differences in allergen predispositions across groups.

This article series reviews volumetric restoration techniques for different facial regions by expert authors, offering assessments of specific products but provides no new clinical results.

This article contains no new research findings and does not create or analyze any new data.

Allergies, especially both seasonal and food, increase the risk of developing alopecia areata.

This study found that adding allergen immunotherapy to conventional treatment may reduce relapse-related hair loss in house dust mite-allergic alopecia areata patients over a 3-year period.

This study found an increase in allergic contact dermatitis cases linked to natural products like propolis and marigold, predominantly affecting women in a Bulgarian population.

This review discusses the relationship between allergies and alopecia areata, highlighting potential roles for anti-allergy and desensitization therapies, but reports no new clinical results.

This study identifies important differences in allergens found in hair products marketed for ethnic hair compared to nonethnic hair, with fragrances being the most common allergen in ethnic products.

This study found that allergic rhinitis is linked to a higher risk of developing androgenetic alopecia, while second-generation H1-antihistamine use was associated with a reduced risk, especially in younger patients.

This study proposes that intranasal exposure to PTx and autoantigen in an animal model can trigger autoimmune disease, supporting the idea that subclinical nasal colonization by BP may cause alopecia areata.

This study indicates that individuals exposed to PPD mount varying immune responses, with either tolerance, subclinical inflammation, or allergy, suggesting no true non-responders to PPD.

This article collection reviews the significant influence of gender and sexual hormones on allergies and asthma, noting more severe symptoms in females and the role of estrogen.

This study found that Israeli patients with alopecia areata had a higher prevalence of comorbid conditions, including food allergies and chronic spontaneous urticaria, compared to matched controls.

Avoiding certain allergens in personal care products may improve symptoms for some patients with lichen planopilaris or frontal fibrosing alopecia.

This study reported that Taiwanese pre-teens and teenagers with atopic diseases, such as food allergies and asthma, had a significantly increased risk of developing alopecia areata, with the risk being 9.66 times higher compared to their peers without atopic conditions.

Long-term exposure to air pollution increases the risk of hair loss.

This study suggests that hypersensitivity and increased serum IgE levels might contribute to the pathogenesis of diffuse alopecia areata through intense local inflammatory infiltration.

Avoiding certain fragrances improved the man's skin condition.

This study found that long-term exposure to particulate matter (PM2.5 and PM10) is associated with an increased risk of developing alopecia areata, with possible involvement of inflammatory pathways, suggesting PM as a modifiable environmental risk factor.

Recognizing new allergens can help reduce contact dermatitis cases.

This study found that pediatric alopecia areata patients with atopic predisposition showed heightened immune and inflammatory responses, including significant immune cell infiltration, compared to adults and healthy controls.

In this case report, two plywood mill workers developed allergic contact dermatitis due to exposure to uncured phenol-formaldehyde resin, not sawdust as initially suspected.

This study suggests that linalool, a common allergen in personal care products, may contribute to frontal fibrosing alopecia pathogenesis by triggering immune responses and depleting hair follicle stem cells, especially in sensitized individuals.

This study analyzed patch test results to identify allergens causing scalp contact dermatitis, finding nickel, cobalt, and balsam of Peru among the most common in the patient population.

This article discusses contact dermatitis linked to alopecia and hyperpigmentation, but it reports no new clinical results.

This study reported that para-phenylenediamine and toluene-2,5-diamine are the main sensitizers in hair dye-related allergic contact dermatitis, with significant cross-reactivity to several other compounds.

This abstract provides information on potential conflicts of interest and acknowledges sources of support for the findings, but does not report specific study results.

This study found that a small number of patients with essential oil allergies could be missed if only standard fragrance tests are used, suggesting the need for specific testing and careful product inspection.

This study found a causal link between eight blood metabolites and allergic conjunctivitis, highlighting their potential role in predicting and preventing the condition.