{'fraction_non_alphanumeric': 0.045662100456621, 'fraction_numerical': 0.01750380517503805, 'mean_word_length': 5.446078431372549, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Occupational contact dermatitis due to spectinomycin

The presence of propyl gallate in both foods and topical preparations raises the question of whether foodstuffs may induce sensitization (10) or, on the contrary, food intake lead to tolerance (1). Experimental and controlled studies are required on this subject. Its permitted concentration in foods and medicaments is between 0.05 and 0.2% (2). Leave-on cosmetics (deodorants, creams, body lotions, lip balms), even if at appropriately low concentrations (8-9), may induce allergic contact dermatitis, showing propyl gallate to be a moderate/ strong sensitizer. Higher concentrations of the antioxidant in ointments and cosmetics seem to increase the sensitization rate (1). Ointments containing propyl gallate at 8% frequently cause allergic contact dermatitis (3-5). Propyl gallate sensitizes, especially when applied on damaged skin, as in cases of dermatitis or leg ulcers (3, 5, 7). Moreover, occlusion, by increasing penetration, provokes a stronger elicitation response to propyl gallate, as experimentally demonstrated (11). In our patient, 2 concomitant events, 8% of antioxidant and application on injured skin, could have facilitated sensitization. Cross-reactivity between gallate esters was not studied in our patient, but has been observed (9).