BACKGROUND A new technique, cutaneous field stimulation (CFS), which activates electrically unmyelinated C-fibers, is used to treat localized itch. Its action is similar to that of capsaicin, the pungent agent in hot peppers, which enhances delayed allergic reactions. The aim of the study was to investigate how experimental contact dermatitis responds to CFS. METHODS Twelve patients with cont...

BACKGROUND There are no studies on contact allergy in patients with prurigo. With itch being important in the pathophysiology of prurigo diseases and being a symptom of allergic contact dermatitis, we aimed to investigate contact allergy in patients suffering from prurigo. OBJECTIVES Exploratory analysis of patch test results in prurigo patients. MATERIALS AND METHODS A retrospective analys...

BACKGROUND Isolated cases of allergic contact dermatitis, gingivitis and stomatitis caused by beryllium have been previously reported. We have been able to study a series of 12 patients with patch test reactions to beryllium chloride. OBJECTIVES The study was aimed at defining the clinical and patch testing characteristics in this group of patients, and determining whether some were delayed e...

Bour-Jr Wang, Yue-Liang Guo, How-Ran Guo and Ho-Yuan Chang Department of Environmental and Occupational Health, National Cheng Kung University Medical College, Tainan, Taiwan, Department of Dermatology, National Cheng Kung University Hospital, Tainan, Taiwan, and Department of Environmental and Occupational Medicine, National Taiwan University (NTU) Medical College and NTU Hospital, Taipei, Taiwan

A 39-year-old female presented with a 20-year history of a polymorphic, urticated and papular eruption occurring on sun-exposed sites but sparing the face and hands. She had been referred because, after many years of sunscreen use, she had begun to develop an exacerbation of her rash at sites of application of a new sunscreen, including, for the first time, the face. She described an urticated ...

ABSTRACT Non-invasive bioengineering technologies continuously discovered and developed in recent decades provide a significant input to research development and remarkably contribute to the improvement of medical education and care to our patients. AIM Assessing skin hydration by using the capacitance method for a group of patients with allergic contact dermatitis versus healthy subjects, be...

Background: The use of temporary henna tattoos has increased dramatically in recent years, especially in children and adolescents. To obtain a darker colour and prolong the life of the tattoo, red henna, a plant-derived substance, is typically added to para-phenylenediamine (PPD). The mixture is called temporary black henna tattoo (TBHT). Because of its molecular characteristics, PPD can induce...

Allergic contact dermatitis (ACD) may account for at least 20% of all childhood dermatitis. Clinically, its morphology is identical to other forms of dermatitis in acute, subacute and chronic forms. A persistent or unusual and localized pattern is often the key to diagnosis. Treatment has centered around the use of corticosteroids, with the adjunct of antihistamines, wet dressings, and emollien...

In the hospital setting, dermatologists are often required to evaluate inflammatory skin lesions arising during surgical procedures performed in other departments. These lesions can be of physical or chemical origin. Povidone iodine is the most common reported cause of such lesions. If this antiseptic solution remains in contact with the skin in liquid form for a long period of time, it can giv...

P-tert-butylphenol-formaldehyde resin is a widely used adhesive chemical. It is used in a broad range of products and should be kept in mind when encountering children with suspected allergic contact dermatitis. We present a girl who developed contact allergy to p-tert-butylphenol-formaldehyde resin used in orthopedic braces.