Rashes during pregnancy may be caused by eczema, urticaria, contact dermatitis and so on. It is recommended to pay attention to diet and environmental care, topical anti-itch lotion, glucocorticoid ointment, and antihistamines if necessary, can help relieve symptoms. 1. Eczema: The causes of eczema are complex, such as poor clothing materials, frequent use of soap, intake of allergy-inducing foods, which may lead to skin rashes. Topical applications such as dehumidifying and anti-itching lotion and Denuded cream can help relieve itching and reduce inflammation. 2. Urticaria: low immunity, emotional stress, allergy to seafood, intake of fish, shrimp and crab may lead to skin rashes. It is recommended to detach from the allergens and apply topical glycerite lotion and mometasone furoate cream, which can help relieve the symptoms. 3. Contact dermatitis: The use of irritating skin care products and contact with allergenic substances lead to damage to the skin barrier and may cause a red rash. Hydrocortisone butyrate cream can be given for topical application, and loratadine can be given under medical supervision if necessary. Pregnancy is a special time for women. If skin rashes occur, it is recommended to avoid allergens and keep the skin clean and hygienic. Do not use hot water to avoid aggravating the itching symptoms. If the symptoms are obvious, it is recommended to follow the doctor’s instructions to use medication to avoid other adverse reactions.