The common causes of dry and itchy calves are dry eczema, atopic dermatitis, nutritional deficiencies, and internal diseases, etc. Antiallergic drugs, supplemental nutrients, and treatment of the original disease can be used after clarifying the causes. 1. Dry eczema: it is related to the decrease of water content in the stratum corneum and the decrease of sebum secretion. Under the guidance of a doctor, medication can be used, such as loratadine, etc. At the same time, it is also necessary to avoid skin care products containing irritating ingredients, avoid excessive rubbing of the skin, and the use of moisturizing products. 2. Allergic dermatitis: when the allergens into the body after the body allergic to produce antibodies, when the allergens into the body again will occur a series of allergic reactions, the local skin will appear dry, itchy, erythema, pimples and other phenomena. Therefore, we need to actively search for allergens and avoid re-exposure, and when the symptoms are serious, we can use medication such as levocetirizine under the guidance of a doctor. 3. Nutritional deficiencies: long-term malnutrition, especially the lack of vitamins, the symptoms can occur, should be used under the guidance of the doctor medication, such as multi-dimensional elemental tablets, etc., and should also pay attention to dietary diversification, eat more fresh vegetables and fruits, avoiding partiality. 4. Internal diseases: such as diabetes patients with peripheral neuropathy can lead to dry skin, resulting in itchy symptoms, it should actively treat the primary disease. Dry itchy calves may also have other reasons, should be timely to the hospital, clear cause of the standardized treatment in accordance with medical advice.