Itchy body after drinking alcohol, consider the possibility of alcohol allergy is relatively large. You can take oral loratadine capsules, one capsule every night, and apply topical glyburide lotion 2 times/day. Such patients should not drink alcohol again to avoid aggravation of the rash or more serious conditions. Also avoid spicy and irritating foods such as raw onion, raw garlic, strong tea, coffee, chili pepper and mustard. You should not eat allergy-prone foods, such as silkworm pupae. And for beef and mutton seafood, chicken, duck, goose and dog meat, the head and hoof of pork underwater, such hairy things can not be touched. After drinking alcohol, you need to drink a lot of water so that the alcohol can be metabolized out quickly. If the treatment is still unsatisfactory you can order 500ml of glucose solution to metabolize the alcohol more rapidly.