Being bitten by a leech wound itch, may be due to leech body fluids or limb allergy, can choose solution wet compress, topical ointment, oral medication. 1. Wet compress: If the bite site is accompanied by erosion, oozing, you can choose 1:5000 potassium permanganate or Hasinide solution wet compress, can reduce itching symptoms. 2. Topical ointment: If there is no oozing and erosion at the bite site, some glucocorticoid ointment can be used externally, such as fluticasone propionate, mometasone furoate and so on. 3. Oral medication: Oral antihistamines can be taken, with some anti-allergic, anti-itch effect, such as diclofenac tadalafil, levocetirizine and so on. After being bitten by a leech, the wound should be cleaned in time, go to the hospital, under the guidance of the doctor’s standardized treatment, the drugs need to follow the doctor’s instructions for rational application.