Contact urticaria artefacta (witchcraft-syndrome).
D000293:Adolescent; D003877:Dermatitis, Contact / Q000175:diagnosis / Q000209:etiology*; D005260:Female; D006229:Hand Dermatoses / Q000139:chemically induced; D006801:Humans; D009525:Niacin; D009539:Nicotinic Acids / Q000506:poisoning*; D010328:Patch Tests; D011247:Pregnancy
D009539:Nicotinic Acids; D009525:Niacin