If itchy limbs are caused by physiological and environmental factors, no special treatment is needed. If it is caused by pathologic factors such as eczema and atopic dermatitis, it can be treated with medication according to the cause of the disease. 1. Physiological factors: such as sebaceous glands of elderly patients with hypoglycemia, sebum secretion is too small, skin dryness, atrophy, can lead to itchy limbs. If the patient has no other obvious symptoms or diseases, there is no need for special treatment, you can apply body lotion and other methods to keep the skin moisturized and reduce itching symptoms. 2. Environmental factors: the skin by friction, the environment temperature and humidity reduction and other factors can lead to sebum secretion reduction, limb skin due to dry and itchy situation. At this time, through the use of humidifiers, body lotion, choose soft skin-friendly clothing and other methods to increase humidity or reduce friction, to alleviate the symptoms. 3. Pathologic factors: (1) Eczema: itching of the affected area is one of the obvious symptoms of eczema. It can be used externally with glycerite lotion, glucocorticoid ointment such as mometasone furoate cream, or oral loratadine, cetirizine and other antihistamines to stop itching and anti-inflammatory. (2) Atopic dermatitis: it is a chronic recurrent skin inflammation, with common symptoms such as dry skin and intense itching. Patients should keep the skin clean, avoid contact with dust mites, pollen and other allergens. Clinically used antihistamines such as loratadine and imipramine are commonly used for anti-inflammatory and itch relief. For those who clearly have bacterial infection, antibiotics such as mupirocin and fusidic acid can be used for treatment. Itchy limbs can also be seen in other causes, it is recommended to consult a doctor in time, according to the cause of standardized treatment. Medications need to be used as prescribed by the doctor.