Yam juice splashed on the skin especially itchy consider an allergic reaction, you can first use cold water to rinse, and then apply anti-itch ointment, if the topical medicine can not alleviate the symptoms, you can take oral antihistamine medication. 1. Yam juice contains plant alkaloids, some people will cause allergies after contact, itching symptoms, you can first use cold water to rinse, cold water can make the blood vessels contract, reduce the absorption of alkaloids in the skin, while the cold stimulation can also play a role in relieving the nerves. 2. After thorough cleaning, you can follow the doctor’s instructions to use hormone ointment such as mometasone furoate cream, compound dexamethasone cream, etc., to stop itching. If the external medicine can not be relieved, you can take oral loratadine tablets, cetirizine hydrochloride tablets and other antihistamines for anti-allergy treatment. It is recommended that patients with particularly itchy skin go to the hospital in a timely manner and follow the doctor’s instructions for standardized treatment. After the itching is relieved, we should pay attention to avoid touching the yam juice again, you can wear gloves as protection.