How soon to get vaccinated for a scratch by a cat needs to be determined by the severity of the wound. If the skin is not broken after being scratched by a cat, no vaccination can be given. If there is a break in the skin, the first application should be soapy water and water to thoroughly rinse the wound for at least 15 minutes, disinfect the wound with iodophor or alcohol after the cleaning is completed, and then the first rabies vaccination needs to be given within 24 hours. If you cannot tell whether there is a break, you can wipe it with alcohol, and if there is pain, there is a break. In addition, the decision to give a passive rabies immunization preparation (rabies immunoglobulin) is based on the wound. If there is no significant bleeding, only rabies vaccine can be administered; if there is significant bleeding, rabies vaccine needs to be administered after the rabies passive immunization preparation. If not given in time, it can be used within 7 days of the first rabies vaccination; after 7 days the immune response has developed and no rabies passive immunization preparation is required. There are two vaccination procedures for rabies vaccination after being scratched by a cat: the five-dose method procedure is one dose on the day of the scratch and one dose on days 3, 7, 14 and 28, for a total of five doses; the “2-1-1” procedure is two doses on the day of the scratch and one dose on days 7 and 21, and if you miss the vaccination time, you need to make up the vaccination according to medical advice. In addition, if the wound is deep, a tetanus vaccination is also required according to medical advice.