After my very first 3rd class was issued after deferral due to mental health issues, I started allergy shots. I know FAA allows desensitization for seasonal allergies. It was not reported on the most recent 8500, because I was not aware of my allergies and didn’t start the treatment. I wonder when it comes to a new application, I check the boxes, do I need to bring doctors notes to avoid delays or orally delivered information is enough for AME to issue? A Side note, I was required to do neurophysiological evaluation, at that time, I started my allergy shots and the it was disclosed in my evaluation report. FAA never asked me for documents related to allergy.