Itchy legs can be seen in eczema, lack of lipid dermatitis, psoriasis, need to do the necessary tests under the guidance of a doctor to clarify what disease, different diseases treatment methods vary. 1, acute eczema: exudation obvious with a solution of wet compress to reduce exudation, available medical gauze soaked in potassium permanganate solution and placed on the lesions to maintain 15-30 minutes, three times a day, itching is obvious when the appropriate oral antihistamine drugs, such as cetiolizine tablets, chronic eczema requires the use of ointment, cream type drugs such as Denide cream, so that the local rash thinning, flat. The chronic eczema requires the use of ointment, cream type drugs such as Denide cream to make the local rash thinner and flatter. 2, lack of lipid dermatitis: mainly local moisturizing, emollient skin care products can be used to slowly ease the dry skin, the itching symptoms will improve after the gradual recovery of the skin barrier function. 3, psoriasis: is a kind of immune factors, environmental factors, genetic factors, treatment needs According to the specific condition to choose topical drugs or oral drugs, if it only occurs in the legs, topical drugs are the main choice, you can choose cabotriol ointment or compound clobetasol propionate ointment, the specific medication needs to be under the guidance of a doctor.