I have a recurring daily itchiness on the inside of the left arm. No redness and no rash. I am a 67year old caucasian male, and I have ADHD, left ventricle hypertrophy, and heart murmur, all being tended to medically. Concerta, losartan potasium, lipitor. Take daily multi-vitamin, B, C, D, and E suppliments and nightly 325 mg aspirin. .