The symptoms of hydatidiform rash may be related to atopic dermatitis, urticaria, eczema and other factors, and can be relieved by cooperating with the doctor to use topical glycerite lotion, oral antihistamine, and removing the triggering factors. 1. Topical glycerite lotion: For patients with rashes in soil and water, if they are related to contact with allergens and have rashes accompanied by itching, they can use topical glycerite lotion, which can stop itching and reduce inflammation. 2. Oral antihistamines: through oral antihistamine drugs, can also achieve the effect of anti-allergy, commonly used drugs, including loratadine and cetirizine, etc., to improve the performance of the patient’s rash. 3. Remove triggering factors: patients who are not accustomed to water and soil, if necessary, need to get out of the bad environment, and clear life allergens, to avoid re-exposure, to prevent the recurrence of rash symptoms. It is recommended that patients should go to the finished hospital as soon as possible, and under the guidance of a professional physician, the use of medication, not blindly use drugs.