| • | clinical variable – eczematous eruption, pomphylox-like, EM-like, urticarial |  
 | • | key diagnostic feature – tends to occur in the later half of the menstrual cycle and resolves within a day or two of the menses  |  
 | • | recurrent eruption ddx – EM, HSV, autoimmune progesterone dermatitis |  
  
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