Allergic acne is usually a manifestation of skin sensitization caused by contact with allergic substances, which results in red spots and pimples, i.e. acne. There is no fastest way to eliminate it, but the symptoms can be improved by searching for allergens, dietary adjustments, medication and so on. 1. Looking for allergens: after allergy acne, patients need to clarify the allergens, must be timely exclusion of allergens, allergens must stop using, but also need to do a good job of skin moisturizing work, conducive to the recovery of acne. 2. Dietary adjustments: during the allergy acne, the patient’s diet needs to be light, avoid greasy, fried, spicy and other stimulating foods, so as not to lead to excessive secretion of sebaceous glands. 3. Medication: During the period of allergic acne, patients can choose to use antihistamines, such as cetirizine, loratadine, with glucocorticoid cream, such as hydrocortisone butyrate cream, fusidic acid cream and other drugs. Allergy acne period, must do a good job of daily care, avoid allergens, and then go to the hospital, follow the doctor’s instructions to take standardized treatment, the above drugs should be used under the guidance of the doctor, can not be used indiscriminately, so as not to lead to adverse consequences.