I have had itchy skin on back and torso for 7 months. Itching is so bad at times my scratching makes the skin raw with small sores. The intense itching is managed by Claritin or advil cold and sinus. Benedryl not much help. The itching initially started on forearms and forehead, but then spread to mostly trunk - front and back. Age is 60. no prior dermatitis. no eczema. no rash. have noticed wine will trigger more itching. some acidic fruits do also. should I have some lab tests? help! the itching is so intense it makes me suicidal at times!