Safflower oil can be used after bruising, and it is recommended only after 24-48 hours of injury, because bruising is caused by strong impact of external force that leads to bleeding of capillaries under the skin of the injured part, so the use of safflower oil 24 hours after bruising can play a role in activating blood circulation and removing blood stasis. It is not recommended within 24 hours of bruising, and it is best to apply cold compresses to constrict blood vessels and reduce the bleeding rate as the main treatment. When the bruise is more than 48 hours, you can use safflower oil for massage, safflower oil to activate blood circulation and remove blood stasis together with local hot compresses to promote blood circulation and absorption, will have very good results, if the area of bruises is larger you can also consider the option of going to the hospital to do red light physical therapy treatment.