Allergic eczema is a superficial dermal and epidermal inflammatory skin disease caused by a variety of internal and external factors. It can cause a variety of skin damage, and is often characterized by intense itching. The specific cause of atopic eczema is not clear, the disease can be triggered or aggravated by food (such as fish, shrimp, beef and lamb, etc.), inhalants (such as pollen, house dust mites, etc.), living environment (such as heat, dryness, etc.), animal fur, a variety of chemicals (such as cosmetics, soaps, synthetic fibers, etc.). Allergic eczema can cause pimples, scales, mossy changes and other skin damage, patients are often self-conscious itching intense, easy to relapse. Patients should avoid contact with sensitizers, treatment can be topical glucocorticoid drugs such as hydrocortisone, dexamethasone cream, etc., can also be taken orally loratadine and other antihistamines. It is recommended that patients with atopic eczema go to the hospital in a timely manner, use drugs under the guidance of the doctor, do not self-medication.