Please choose the correct ending to complete the given sentence: Health: [header] How to treat a finger hit by a hammer [title] Check for swelling. [step] Your finger will likely swell no matter how hard you hit it. This is the most common response to such trauma.

Ending1: Swelling will be a slightly more common reaction to injury. Use a splint to allow swelling to slowly fall back into place, as striking the knuckle may cause it to flare up. Ending2: Swelling will begin to decrease after the injury occurs, and scar tissue will develop even more, forming patches of scar tissue along the edge of the finger. Swelling from a bruise can manifest itself as red, scaly patches on the fingertip or the area surrounding the bruise. Ending3: If the hit wasn't too forceful, your finger may just swell for a couple of days. If the only symptom you see is swelling, place an ice pack on your finger to help relieve the swelling and pain. Ending4: The swelling might be acute or come and go depending on how much blood you have. If it's swelling, it means your finger needs to visit a doctor.

Answer format: ending1/ending2/ending3/ending4