Allergies can be treated by removing allergens and using medication. 1. Remove allergens: allergies are related to many factors, the symptoms of allergies need to remove the allergens in time, such as stop contact with allergy-prone substances, eat allergy-prone food, so as not to lead to allergy symptoms worsening, pay attention to keep the skin clean and dry. 2. Medication: After the appearance of obvious skin itching and swelling, you can use medication, such as glycerine lotion, loratadine, etc. If there are obvious allergic symptoms, it is recommended to use medication. If there are obvious allergic symptoms, we recommend actively seeking medical advice, usually need to maintain good habits, light diet. All of the above drugs should be used under the guidance of a doctor.