title: Flare of cystic acne from oral isotretinoin.
mesh_terms: D000152:Acne Vulgaris / Q000188:drug therapy*; D000208:Acute Disease; D000284:Administration, Oral; D006801:Humans; D015474:Isotretinoin; D014212:Tretinoin / Q000008:administration & dosage* / Q000009:adverse effects
chemical_list: D014212:Tretinoin; D015474:Isotretinoin