Hi greetings. Please use a good moisturiser two to three times daily, change of weather and dry skin can sometimes cause this feeling. Get your self examined by a dermatologist to rule out any other infestation or problem you may have. You could take an oral anti histamine like cetrizine (under prescription) for a week to reduce itch. Hope this helps. Warm regards. Dr Govind S Mittal. Excel care hospital, Bangalore.