Question: what does it mean when your knee itches?
Answer: An itchy, blistering, burning skin rash, dermatitis herpetiformis (DH) is a difficult condition to live with. The rash and itching occur on the elbows, knees, scalp, back, and buttocks. This rash likely indicates gluten intolerance, which may be related to a more serious underlying condition known as celiac disease.