Women who take loratadine occasionally 1-2 times during pregnancy preparation usually do not cause adverse stimulation to their body. If a woman takes loratadine frequently during pregnancy preparation, it may cause a decrease in the quality of her eggs and her body’s resistance, thus increasing the chance of embryonic abortion, spontaneous miscarriage and abnormal fetal development in early pregnancy. Loratadine is an anti-allergy drug. When women have itchy skin, allergies or severe hives during pregnancy preparation, they need to be treated with loratadine as soon as possible under the guidance of a doctor in order to help relieve the condition. In order to avoid allergies and the use of medication, it is necessary to avoid the adverse effects of external stimuli on the skin in order to benefit the health of the body.