“…In addition to the above cigar and cigarette components, the standard series of allergens should always be tested (in particular fragrance mix, balsam of Peru, formaldehyde, isothiazolinones, and parabens mix), as well as the various additives used in tobacco production and processing (in particular, cocoa, menthol, liquorice, and colophony) [14,68]. In smokers, when observing an airborne contact dermatitis involving the face and possibly the hands, volatile substances contained within matches, such as phosphorus sesquisulfide, as well as "strike anywhere" match heads themselves, should also be tested [53,55]. With regards to additives, the Philip Morris website lists all the ingredients and their respective proportions for the various kinds of products [69].…”