Rest the area
Apply ice or a cold pack for 15–20 minutes at a time
Repeat cold treatment every 2–3 hours for the first 24–48 hours
Elevate the affected area if possible
Use gentle compression with a bandage if appropriate
Take acetaminophen for pain if needed
Avoid aspirin or ibuprofen unless a doctor says it is safe
Do not massage or heat the area during the first 48 hours
Monitor for increasing pain, swelling, redness, or warmth
Seek medical care if the hematoma is large, very painful, or not improving
Seek urgent care if there is numbness, weakness, trouble moving the area, or signs of infection
Seek emergency care if it follows a head injury, causes severe pressure, or you have trouble breathing or fainting