Irritant contact dermatitis caused by cosmetics containing excessive mercury.

Background: Irritant contact dermatitis (ICD) is a localized, nonimmune-induced inflammatory skin reaction, characterized by multiform skin lesions, including erythema, scaling, edema, blisters, and erosion. Mercury and its related compounds are highly allergic agents that can induce allergic contact dermatitis.

Aims: This article aims to clarify the skin damage caused by irritant contact dermatitis caused by the addition of high doses of mercury to skin care products.

Characterization of rosacea in Chinese: An analysis of 254 cases.

Background: Rosacea is a common chronic inflammatory dermatosis with uncertainty of etiology. Although clinical features and risk factors of the disease in Caucasians have been reported, this information in Chinese is largely unavailable.

Aims: To analyze the clinical features and associated risk factors of rosacea in Chinese.