A dog bite that does not break the skin or bleed is a class I exposure and is generally not a problem. Because the skin is intact and unbroken, rabies virus cannot enter the body, and thus the patient is less likely to be infected with rabies virus at this time, and can temporarily not receive rabies vaccination. However, after being bitten by a dog, it is important to note that some skin and mucous membrane breakage, the appearance may not always show up, at this point, alcohol can be used to help determine. Generally, you can use a cotton swab dipped in alcohol to apply to the local area. If there is no painful sensation, you can be sure that the skin is not broken and rabies vaccination is not needed, but you should also clean the affected area as soon as possible. You need to clean the affected area with soapy water for more than 15 minutes, or iodophor or alcohol wipe to disinfect the affected area. If there is pain, it means that there is a break in the skin. This is a secondary exposure to rabies and requires a full rabies vaccination, which can be done by cleaning the wound first and then going to the hospital immediately. Rabies vaccination is recommended to be given on the same day for the best immunization effect, and if there are no conditions for injection on the same day, it is best not to exceed 48 hours. If it is more than 48 hours, although the effect is not as good as immunization within 48 hours, it should be injected and in most cases will still have an immunizing effect. After the injection, you should avoid spicy and stimulating food, no alcohol, strong tea, coffee, carbonated beverages, etc., no strenuous exercise, and if you need to take medication for the treatment of other diseases, you need to consult a professional doctor.