After the oysters hand stinging and itching may be contact dermatitis, treatment should be rinsed hands with water, and then use topical drugs or oral medication for treatment. After washing oysters hands tingling and itchy, may be due to the human body to oysters in certain substances allergy, contact dermatitis caused by the treatment should be on the hands of the residual material rinse clean, and then use glycerine lotion, zinc oxide ointment, dexamethasone ointment and other drugs coated in the itchy parts of the hands. If the patient’s itching is intolerable, antihistamines such as loratadine can be taken orally to relieve the itching. In the future, patients should avoid cleaning oysters with bare hands and wear gloves before cleaning. If it is determined that the patient is allergic to oysters, please follow the doctor’s instructions for medication.