centurion

I am new to the group and I do not know if anyone will even respond or not but I have to ask. The VA called me in for a reevaluation exam on July 5. I am service connected for Acne Vulgaris and hidradenitis suppurativa and I have scars. They made me come in for an exam on July 5 becasue they are trying to mess with my rating. I went through that exam and now they are making me take another one on Aug 14. I am worried that they are going to lower my rating and screw me over on anything they can and anturally I want to prevent that. I was wondering if anyone had any advice or information they are willing to share that could possilby help me prepare for my exam on Aug 14? I was wondering if I could take pictures, or get a buddy letter or something from a doctor or anything like that. Anyways I welcome any advice. Thank you.