Allergic body itching after drinking beer refers to the skin allergic reaction caused by drinking beer, often manifested as red spots, pimples with itching and so on. It can be improved by keeping away from allergic factors and medication. 1. Stay away from allergic factors: avoid contact with alcohol and other irritating factors. Protect the affected area and use skin care products and cosmetics cautiously. Drink plenty of water and pay attention to diet. 2. Medication: (1) Antihistamines: If it is caused by alcohol, anti-allergy treatment can be carried out, oral antihistamine drugs such as cetirizine, loratadine and so on. (2) Hormonal drugs: if the patient’s symptoms are more serious, you can consider taking some hormonal drugs, such as prednisone. (3) Topical drugs: if the skin itching is serious, you can apply some glycerite lotion, and when there are symptoms of erythema papules, you can apply mometasone furoate ointment. Beer allergy, you need to consult a doctor in time, by the doctor’s guidance under the standardized treatment. The use of drugs need to follow the doctor’s instructions, avoid self-medication.