My skin is dry & itchy. legs, back, arms, neck, ears, face. red patches on arms. confused. what could be wrong? medication. what disease is this? thx.

Need to know more: Although the description is compatible with atopic eczema( since you probably have allergic rhinitis as well as evidenced by the sneezing), it is not possible to tell without a direct examination. Consult an allergist or dermatologist. In meanwhile be sure to bathe daily and apply a skin moisturizer immediately after having sponge dried your skin .