The injection is effective 4 days after being bitten by a dog. In fact, as long as the vaccination is done in time before the onset of rabies, it will be effective, because the incubation period of rabies is relatively long. At this time, first observe whether you have any symptoms of rabies. If there are no suspicious symptoms of rabies, it is not too late to vaccinate. If necessary, you can increase the dose of vaccination and use immune globulin to prevent the disease. Intermittent treatment.

What to do if bitten by a dog:

1. After being bitten, immediately wash the wound with 20% soapy water and tap water, repeatedly and alternately for more than 20 minutes. , while forcefully squeezing out the blood from the wound and surrounding tissues.

2. If the bite is severe and you cannot handle it yourself, you need to go to the hospital for cleaning and disinfection, and infiltrate and inject rabies immune globulin around the wound.

3. Then go to the Centers for Disease Control and Prevention or a community hospital to receive the rabies vaccine. Do not drink alcohol or strong tea during the vaccination period.