After the foot was scraped by the car should be different according to the severity of the injury, to take different rescue methods. 1, if only superficial small area of abrasions, can be treated at home. You can use saline to rinse the wound surface, and then apply purple saline or red mercury to let it converge to heal on its own, it can not be bandaged. 2, if the foot was scratched by the car after causing extensive damage, there is also a large area of skin loss, this should be promptly to the hospital for examination and treatment, in the hospital can be treated by debridement and medication. If necessary, according to the situation of the injury, take the surgery method to save. In the hospital to check whether there is bone damage through the film, once identified should be symptomatic treatment.