Having your hand cut by an oyster is still serious because oyster shells may carry a large amount of bacteria, which may lead to the development of localized infections if not handled promptly and correctly. Therefore, hands cut by oysters should be disinfected before going to the hospital for a tetanus shot. 1. Disinfection: After your hand is cut by an oyster, you should disinfect the wound first, and you can disinfect the surface of the wound by yourself with iodophor. 2. Tetanus shot: After disinfecting yourself, you should go to the hospital at the first time to break the tetanus shot, and bandage the wound under the guidance of a professional doctor to prevent serious complications. Hands must be properly treated after being cut by oysters. If you find obvious redness, swelling, ulceration or even liquid oozing from the wound, you should go to the hospital for diagnosis and treatment under the guidance of a doctor. During the treatment period, stay away from tobacco and alcohol, and do not eat spicy and stimulating foods to avoid overly aggressive skin reactions.