Sometimes cats just give warning nips without breaking the skin, other times the bites can result in deep punctures from their fangs.  Inspect the bite and look for areas where the skin may have been broken. A child may be crying and scared, even if the bite did not break the skin. If the cat’s teeth did not break the skin or broke the skin but did not go deep, you can wash and clean the bite at home.  Thoroughly wash the bite with soap and clean tap water, allowing the water to flow over the bite and remove dirt and bacteria from the wound. Hold the bite under running water for several minutes. Gently squeeze the bite to help the blood flow. This will help remove dirt and bacteria from the inside of the wound. Put the disinfectant on a sterile cotton ball and then gently wipe it over the bite. It will probably sting, but only briefly. The following chemicals have excellent germicidal properties:  Rubbing alcohol Iodine scrub Hydrogen peroxide Smear a pea-sized amount of topical antibiotic cream over all areas where the skin was broken.  Triple antibiotic creams are widely available and effective. Always read and follow the manufacturer’s instructions. Talk to a doctor before using these medications on infants or if you are pregnant. This will help keep dirt and bacteria out as it heals.  Cover all areas where the skin was broken with a clean band aid.  Because cat bites usually cover a small area, you will probably be able to cover it with an over-the-counter adhesive Band Aid. Dry the bite first, to help the Band Aid stick.

TL;DR in Chinese:
评估咬伤的严重程度。 清洗轻微的咬伤。 为伤口消毒，防止细菌或其他病原体滋生。 擦非处方抗生素软膏来预防轻微咬伤引起的感染。 使用创可贴保护伤口。