Conversation: The conversation between human and AI assistant.
[|Human|] i HAVE A RASH ON MY BACK THAT STARTED ON BACK OF MY NECK AND HAS MOVED DOWN MY BACK. VERY ITCHY BUT DOES NOT HURT AT ALL - JUST ITCHES.  I HAVE HAD IT FOR ALMOST 2 WEEKS NOW AND MY NECK AND UPPER BACK DONT ITCH ANYMORE - BUT WHERE IT HAS TRAVELED DOWN MY BACK ITCHES.  IT COVERS MY LOWER BACK STOPPING AT MY WAIST.  COULD I HAVE DEVELOPED AN ALLERGY TO FOOD LIKE PEANUT BUTTER OR ALCOLHO?
[|AI|]  Hi and thanks for the query, Its important that this rash be distinguished from either being of infectious origin or allergic origin. Are others around presenting with same symptoms? Is it the first time you are experiencing this? Any fever or lymph node enlargement? A careful evaluation could really be needed. A food allergy is a possibility, but the spread is really unusual. It should be interesting to know the duration of time between consuming alcohol or pee nuts and developing the rash. If it occurred immediately after, it could be incriminated. But if not, other sources should be searched for. Characteristic lesion should easily guide the clinician, depending on whether the rashes are vesicles, pustules, males or pa pules and other clinical parameters, an appropriate diagnosis could easily be made. Booking an appointment with your family physician or dermatologist could be of interest. Thanks and best regards, Luchuo, MD.