Because the skin is not broken, there is no risk of infection.
Bruises usually occur after an injury caused by blunt objects.
Home Care Bruises Apply ice to the bruised area for 20 to 30 minutes. No other treatment should be necessary. Give acetaminophen or ibuprofen for pain. Don't use aspirin because it may prolong the bleeding. After 48 hours apply a warm washcloth for 10 minutes three times a day to help the skin reabsorb the blood.