title: Contact allergy to sorbic acid and Unguentum Merck.
mesh_terms: D003877:Dermatitis, Contact / Q000209:etiology*; D004485:Eczema / Q000188:drug therapy; D005231:Fatty Acids, Unsaturated / Q000009:adverse effects*; D006801:Humans; D009824:Ointments / Q000009:adverse effects; D013011:Sorbic Acid / Q000009:adverse effects*
chemical_list: D005231:Fatty Acids, Unsaturated; D009824:Ointments; D013011:Sorbic Acid