Have blistery rash on hands and feet. Performed allergy skin and food allergy testing. What are the findings?
Patient: I have has a blistery rash on my hands and feet that comes and goes in a 3week cycle.  I have had allergy skin testing and food allergy testing which came out no allergy.  The allergist sent me to a derm...the derm took two biopsy samples...results today showed neutrophil cells were present so she wanted to take another biopsy to determine what it is.  My question is what all is she looking for? She mentioned ruling out lupus with a blood test in the future. Doctor: neutrophils are found in acute infections and the cause can be any like bacterial viral or fungus and they are trying to find the disease related to treat in my opinion