Drinking body allergy, itchy skin can be based on the condition of clinical observation or oral antisensitization drug treatment, antisensitization drugs are loratadine, cetirizine and so on. The itchy skin after drinking alcohol is considered to be allergic to alcohol, if the redness, swelling and itching is not too serious, it is recommended to drink more water to accelerate the metabolism, not to be treated for the time being; if the itchy skin is more serious, you can take anti-allergy drugs orally, such as Loratadine, Cetirizine, Calcium Gluconate and other treatments. If the symptoms gradually aggravate, no improvement after oral medication, it is recommended to go to the hospital as soon as possible. The causes of alcohol allergy are related to factors such as congenital factors and acquired deficiency of acetaldehyde converting enzyme. If there is a history of alcohol allergy, it is recommended to abstain from alcohol. It is recommended to consult a dermatologist for targeted treatment under the guidance of a doctor.