Consider allergic dermatitis, because of the special pregnancy, can use limited drugs, recommended two kinds of furnace glycolate lotion and calcium gluconate injection, mild non-hormonal non-irritating. Specifically: 1. Medication regimen: Furfurylate lotion, topical application, 2-3 times a day, helps to fade redness and astringency and relieve itching. Oral vitamin C, calcium gluconate or static push, has a non-specific anti-allergic effect, can improve vascular permeability, has a certain anti-itch effect. Antihistamines are generally not recommended, especially the generation of antihistamines, which can pass the blood-brain barrier and may cause drowsiness and other effects on the fetus. If you must choose an anti-allergy drug, loratadine tablets are relatively safe, but must be used under the guidance of a doctor. (2) Find the cause of pregnancy allergy, in addition to the normal population exposure to allergens, may also be related to (1) physical changes during pregnancy; (2) abnormal bilirubin metabolism during pregnancy caused by itching; (3) pregnancy hyperglycemia caused by itchy skin, and actively find and remove the cause to prevent recurrence; (4) life care, pay attention to not scratching, not scalding, do not use soap and shower gel to stimulate the skin, such as broken, can add erythromycin (4) Life care, do not scratch, do not burn, do not use soap and shower gel to stimulate the skin, such as broken, can add erythromycin ointment to prevent bacterial infection, diet is light, do not eat spicy food, do not eat seafood beef and mutton. Allergies during pregnancy should pay attention to the safety of medication, especially during the critical period of neurological development of the child, such as early and middle pregnancy.